Girl Genius
Girl Genius

This timeline attempts to place the events mentioned in the Girl Genius story in internal chronological order.

Methods and Assumptions[]

  1. Sources: An attempt has been made in each event description to include a link to the source of the dating information.
  2. "Relative Dates": This column places events relative to two seminal events: the attack that destroyed Castle Heterodyne (which is assigned Year 0, Day 0) and the start of the main narrative of Girl Genius (which is assigned Year +19, Day 0). Clues in the narrative usually allow an event to be placed relative to one of these.
  3. When was the attack on Castle Heterodyne? The memorial marker for Klaus Barry Heterodyne shows his birth year as 1_72. The second digit is round on the top and, since older dates in the crypt include 1623, is probably an 8.[1] Thus, he was born in "1872". The attack occurred 407 days after Klaus Barry Heterodyne was born, which would put the attack in 1873-4.[2]
  4. When does the main narrative begin? The narrative through Volume IX takes place in the late winter/early and middle spring[3]. The main narrative takes place roughly 19 years after the attack on Castle Heterodyne. Thus, the story likely begins in 1892-4. This date is assumed to be +19 years, 0 days, though it could as easily be off by +/- several months.
  5. "Actual Dates": The Canon gives a few absolute dates, but most entries in the Actual Dates column are calculated based on clues in the narrative.
  6. Canonicity: Nothing is entirely certain. Though statements in the narrative such as "100 years ago" are given literal effect below for convenience, but they were probably only approximations and are, of course, subject to being 'clarified'.
  7. Elapsed time: As an approximation, a historical event occurring "14 years before", for example, volume 7 of the story is taken to occur at the same time as an event occurring "14 years before" volume 1 of the story, since the amount of time elapsed during the story isn't terribly precise (and may never be).
  8. Shading: Green highlights the attack-on-Castle-Heterodyne and start-of-narrative events. Unshaded cells hold dates that source material fixes with some precision. Grey cells hold ranges and other best estimates.

New cues and clues from Agatha H. and the Airship City[]

Long ago[]

  1. The other war broke out in earnest six months after Castle Heterodyne blew up.
  2. Bill and Barry were last seen in public helping Woggleburg after the attack on Lord Womak.

Not so long ago[]

  • Events start on a cold day in March.
    • Agatha is wearing her current favorite outfit, a birthday present from Lilith.
  • Assuming the castle blew up in late summer or fall and Lucrezia was pregnant at the time, Agatha is in her nineteenth year.
    • Therefore the year is 1892.

New cues and clues from Agatha H. and the Clockwork Princess[]

  1. The Storm King Fought the Heterodynes at Sturmhalten in 1673-1676.
  2. The muses were all present when the treaty ending the battle was signed in 1676.
  3. Part of the treaty was that the Storm King would marry Bludtharst's sister Euphrosynia. They both were the offspring of Clemethious Heterodyne.
  4. Makes you wonder what major change happened to the castle in 1677.


Long, long ago[]

Relative Date Actual Date Event
(Ancient times)[4] Creation of the Queen's Mirrors.
(likely -8000 years or earlier) likely 6000 BCE or earlier Rise of the Ancient God-Queens.
(likely -8000 years or earlier) likely 6000 BCE or earlier[5][6] Queen Albia of England overthrows Witch Queen Lozz, and thereby joins the ranks of the God-Queens. The Queen's Henge is constructed when she breaks through for the second time.
Nearly 5000 years ago circa 3000 BCE The mirror network is destroyed (or at least, becomes significantly harder to use ) because of actions by Lucrezia Mongfish. The God-Queens are cut off from one another and begin to decline.
(around -2300 years) 5th century BCE [7] Earliest known sighting of the "Muse of Time", by Meton of Athens. Earliest known contribution to the collection of notes that would later be bound and come to be known as Van Rijn's notebook.
(long, long ago) Geisterdamen serve their Eternal Lady at the Geisterdamen temple.
(long, long ago) Queen Albia of England begins a centuries-long campaign of imperial expansion and exploration, likely to discover the locations (or former locations) of her fellow God-Queens.

Not so long, long ago[]

Relative Date Actual Date Event
(-832† years, or earlier) 1041 or earlier Ht'rok-din takes Mechanicsburg.
-831† years 1042 Knife, son of Ht'rok-din, builds 1st Castle Heterodyne in 1042 AD.
(-830† to -576† years) Vlad "the Blasphemous" Heterodyne creates Jägerbräu and the first of the Jägers
(-830† to -576† years) Jägergenerals created.
(-830† to -576† years) Egregious Heterodyne uncorks the Dyne and destroys the first castle
(-830† to -576† years) Castle Heterodyne is rebuilt three times.
-575† years 1298 5th Castle Heterodyne is built in 1298 AD.
(-575† to -280 years) 1298-1595†[8] Faustus Heterodyne makes Castle Heterodyne self-aware.
-575† to -209† years 1298-1666[9] Satyricus Heterodyne creates his famous addition to Castle Heterodyne, housing his harem. The famous "The Temptation of Saint Vulcania" is installed in his seraglio.
-307† years 1566[10] The Vatican is ransacked by the Anabaptist Alchemical Army. Authority over the church is never again centralized under a single Pope, and in subsequent years seven different papacies are established.
(circa -298 years†) 1575 Lazurus Heterodyne is born. True to his name, he lives and dies multiple times, and he is known to have been reburied in 1602, 1604, 1609, 1614, and 1623.
(circa -280 years)[11] circa 1595† Robur Heterodyne discovers a method for manipulating time, inadvertently summoning the Dreen. Terrified, he destroys his time-manipulating machine, then has pie.
(circa -277 years†) 1596 The Black Heterodyne is born, and, given their close relationship, likely the Red Heterodyne around this time as well.
(-279 to -229 years)[12] 1593† to 1643† Maxim, youngest of Da Boyz, is born.
-279 to -81 years 1593† to 1779†,

likely 1608† to 1696†[13]

Da Boyz (Ognian, Dimo, and Maxim) fight for the Red Heterodyne against the lava cannons of the Unseen Empire.
-ca 220 years -ca 1648 It is possible (but not certain) that the father of the Storm King fights Clemethious Heterodyne at around this time, depending on how much Baron Klaus Wulfenbach stretched the truth during his tale .
(circa -218 years†) 1655 The Black Heterodyne dies. His tomb is marked "Do not open". Since undead Heterodyne vampires are considered to be plausible residents of the crypts, it is possible that one of the Heterodynes from this era (such as the Black Heterodyne or Lazarus) refuses to stay dead even to this day.
-ca 200 years 1668 Andronicus Valois, the Storm King, starts to build his Palace of Enlightenment in Provance.
-ca 200 years 1668-1673 The spark Van Rijn builds nine muses for the Storm King. Storm King and Coalition of the West battle Bludtharst Heterodyne. Klaus's tale suggests that the Storm King actually fought "Gradok the Dour", aka "the Good Heterodyne" at this time, but this tale is probably not accurate.
-200 years 1673-1676 Storm King holds off Heterodyne Hordes at Sturmhalten.
-200 years 1676 Battle ends with treaty and wedding between Storm King and Euphrosynia.
-196† years 1677 A major change to Castle Heterodyne in 1677 AD.
-181 years, or earlier 1691† or earlier Knights of Jove are "destroyed" in Storm King's quest to win the heart of Euphrosynia Heterodyne. Storm King's reign ends.
-181 years, or earlier 1691† or earlier One of Van Rijn's muses, Otilia is tasked by the Storm King to protect "the Heterodyne girl . But Van Rijn "learns what [the Heterodyne girl] would be," and orders her to keep others safe from that girl. Later, Lucrezia Mongfish transfers Otilia's personality into Von Pinn.
-149† years 1723 Telemacous Heterodyne is born and dies an innocent.
about -125 years or so ~1730† Iscarriot Heterodyne is born.
-121 years 1751† Embi is born . As a young man, he leaves home to see the world.
-80 years ca 1780?† Birth of Ominox Heterodyne and Zagnut Heterodyne, uncles to Saturnus Heterodyne.

Long ago[]

Relative Date Actual Date Event
(during the life of Saturnus Heterodyne) The Beast is constructed and given to the Corbettite Monks.
(during the life of Saturnus Heterodyne) Possibly 1816[14] The "Year of Three Winters" occurs. Saturnus Heterodyne burns the old Mechanicsburg town hall for five months, presumably as a source of heat.
(-40 years to -30 years) 1830s† Baron Klaus Wulfenbach, The Heterodyne Boys, and Lucrezia Mongfish are born.
-20 years 1852† The Heterodyne Boys, Baron Klaus Wulfenbach, and Punch & Judy begin adventuring.
(about -20 years) circa 1852† Baron Klaus Wulfenbach has an affair with Queen Albia of England.
(-20 years to -3 years, 4 months) 1852†-1868† Klaus becomes a construct .
(years ago) Lucrezia Mongfish visits Queen Albia.
(decades ago) Eternal Lady makes frequent visits to Geisterdamen temple.
-6 years 1867†-1868† Prince of Sturmhalten grows experiments in Sturmhalten that occasionally escape to sewers.
-3 years, 4 months October 1869†-October 1870† Bill Heterodyne proposes to Lucrezia Mongfish, Lucrezia beds Klaus, Lucrezia drugs and exiles Klaus.
(-2 years, 6-8 months) March-May 1871†[15] Gil is born. Klaus keeps Gil alive. Klaus thinks this would give someone from Skifander a reason to kill Gil.
-1 year, 42 days 1872† Klaus Barry Heterodyne is born to Lucrezia and Bill in 1_72 AD. It is 2 years and 3 months since Klaus disappeared; gossips still ignore the math.
(-?? months) Lucrezia repurposes von Pinn as nursemaid for Klaus Barry Heterodyne.
-3 days 1873†-1874† Carson von Mekkhan retires as Heterodyne seneschal.
-1 day 1873†-1874† Bill and Barry leave Castle Heterodyne because of "something to do with giant vegetables".
Year 0, Day 0 February 1873†-February 1874† 5th Castle Heterodyne is destroyed after sundown with massive explosions ; Klaus Barry Heterodyne dies ; Lucrezia disappears ; Lucrezia's notes are burned.
+?? hours 1873†-1874† Bill and Barry return to Castle Heterodyne, recover bodies of Seneschal Von Mekkhan and 62 other staff.
+1 day 1873†-1874† Bill and Barry go to war, leaving Castle Heterodyne for last time.
+6 months 1873†-1874† The Other goes to war against the Sparks and the Heterodyne Boys; 43 major houses destroyed. Knights of Jove under Prince Aaronev VI Sturmvoraus fight for the Other.
(+0 to +1 years) 1873†-1874† "Eternal Lady" arrives at the Geisterdamen temple, visibly pregnant. The Holy Child is born.
(+0 to +1 years) 1873†-1874† Agatha is born.
(+3 year) 1875-1876 Barry Heterodyne and Bill Heterodyne observe the attack on Lord Womak's city. [16]. Confirming their calculations and revealing the whereabouts of the other.
(+3 year) 1875-1876 Persons unknown assault the Geisterdamen temple while the "Eternal Lady" is absent, take the Holy Child as an infant. Geisterdamen rebuild their temple.
(+3 year) 1875-1876 The Other stops attacking; no body is found. The Heterodyne Boys disappear. Last date for construction of a hive engine. Snarlantz hides most of the existing hive engines in Passholdt. The great houses keep right on fighting , causing widespread destruction.
(+3 year) Castle Wulfenbach is destroyed ; Klaus won't confirm whether the Other did it.
(+4 year) 1876-1877 Geisterdamen are visited by their goddess in her aspect of Sharp Crystal. After purging many of the Geisterdamen the rest are put to a period of building.
(+3 years) Klaus returns after 'six years'[17] (having spent about four years in Skifander, and possibly additional time elsewhere) evidently through one of the Queen's Mirrors with baby Gil but without his wife .

Upon arriving through the mirror, he is immediately met by Dreen, who offer their services. He begins his war to establish The Baron's Peace throughout Europa.

+3 years 1857†-1858† Castle Wulfenbach is first launched according to Agatha H and the Airship City.
+4 years, 6 months TPU expedition enters Castle Heterodyne, is conscripted by the castle to perform repairs .
(+4 years, 6 months to +5 years) Klaus politely takes Mechanicsburg, acquires Jägers and von Pinn, sets up town council. Shadow government led by Carson von Mekkhan continues to rule Mechanicsburg in secret.
+5 years Castle Heterodyne sends TPU assistant out for food; Klaus negotiates with the castle to supply labor.
+5 years, 2 months Carson von Mekkhan uses of Throne of Faustus Heterodyne 437215353 seconds (13.85 years) prior to Agatha's arrival in Mechanicsburg, swears never to channel the castle again.
+5 years 3000 of the Elite White Geisterdamen go through the one way door from the City of Silver Light to the Shadow lands. They are tasked with finding the Holy Child.[18] Loremistress Milvistle destroys the gateway to the temple and its plans, stranding Geisterdamen in Europa.
+6 years Agatha first 'Heterodynes' at age 5. Barry keeps moving the family to keep them hidden.
(+6 to +8 years) Barry creates Agatha's locket and gives it to her.
(+7 years) The Royal Archaeological Expeditionary Force finds the lost city of Ubar, still ruled by Queen Ishtar-Re.
(+1 day to 8 years) Barry tells Tarsus Beetle that Klaus did something untrustworthy.
+8 years Barry leaves on what should be a brief mission , placing Agatha in the sole care of Punch and Judy. He has not yet returned.
+9 years Higgs signs up with the Wulfenbach airship fleet. He serves for ten years "without distinction".
(+6 years to 12 years) 1878†-1887† Gil constructs Zoing at age 8. Klaus hides Gil's spark. Gil attends Castle Wulfenbach school incognito.
(+1 to +16 years) Vrin and Aaronev VI rebuild Holy Machine, kidnap many sparky girls in attemps to revive Lucrezia.
(+11 years or thereabouts) Captain Pierre leaves his wife and family due to "professional differences".
(+11 to +21 years) On at least three separate occasions, agents of Queen Albia enter Wulfenbach territory to rescue royal princesses. One of these events involves Princess Urania being rescued by Trelawney Thorpe.

Before our story begins[]

Relative Date Actual Date Event
(+16 years) Hidden Skifander is “discovered” by expedition. Zeetha leaves home to see the world. Members of Bangladesh DuPree's pirate army intercept the expedition and kill all of its members except Zeetha.
+16 years "Dot magnetic prince guy" raises the last significant rebellion against The Baron's Peace but is put down in five months.
(+16 years) Master Payne's Circus of Adventure acquires two of Van Rijn's muses (Tinka and Moxana). Aaronev VI nearly kills Anevka in the Holy Machine. Tarvek takes Tinka and copies her to create a clank for Anevka.
+16 years Zeetha destroys Bang's pirate fortress and, with it, all her leads to finding the way back to Skifander. Bang is subsequently recruited by Baron Wulfenbach.
+16 years Professor Tiktoffen is condemned to Castle Heterodyne. He supervises repairs for Klaus , but also reports to numerous other factions, including the Knights of Jove.
+17 years Zeetha joins Master Payne's Circus of Adventure.
(+5 to +19 years) Vole is expelled from Jägers, renounces Jägertroth.
(+6 to +19 years) A female prisoner earns her freedom from the Castle Heterodyne repair crew.
(+18 years) Snarlantz successfully modifies one slaver engine to enslave a spark, then another turns all of Passholdt into revenants. Selnikov and the Jotun brothers erase evidence in Snarlantz's lab and acquire spark-enslaving engine for Aaronev VI .
(+18 years) Klaus defeats the Gilded Duke. Wulfenbach clanks blow up the mountain of the Duke D'Omas.
(not too long ago) Gil acquires Ardsley Wooster, a reputation , and a Lamp while living incognito in Paris and meets Zola. When Gil returns to Castle Wulfenbach, he is announced as the son of the Baron. Someone intercepts Gil's mail; Klaus, Von Pinn and Xerxsephnia von Blitzengaard are all possible culprits.
+18 years, 9 months Klaus assigns Dihoxulator to TPU as test for Gil.
(+19 years, less ?? weeks) Bangladesh DuPree destroys walking gunboat Vienna 707. Moloch and Omar von Zinzer flee, as do Bruno and the kid. Bang sees an electrical anomaly during the attack.
(+18 years, 50 weeks) Tarsus Beetle brings a hive engine to TPU.
(+19 years) Two weeks after destroying Vienna 707, Dupree investigates a burning town and sees another electrical anomaly. Unusually, Bang wasn't the one who burned the town.

Prologue and First arc: Castle Wulfenbach[]

Relative Date Actual Date Event
+19 years, 0 days 1892†-1894† possibly morning of Wednesday, 7 March 1894 The events of Girl Genius begin . 18-year old Agatha Clay sees an electrical anomaly with a malevolent figure inside, has her locket stolen by Omar von Zinzer, screams for him to die slowly . Gil discredits the Dihoxulator, kills Tarsus Beetle, and saves a fish (twice ). Merlot takes over TPU and expels Agatha. Hugo Glassvitch transfers Agatha's records to the Paris Institute of the Extraordinary, apparently hoping that she will complete her education there.
+19 years, 1 day Agatha builds the Beetleberg Clank. Omar von Zinzer dies while holding Agatha's locket.
+19 years, 3 days Agatha awakens in Castle Wulfenbach, meets the imprisoned Othar Tryggvassen, Gentleman Adventurer, gets the sniff test from the Jägergenerals.
+19 years, 4 days Gil adopts a fish. Agatha tells Mr. Rovainen to "go do" whatever it is he "should be doing".
+19 years, 5 days [19] Agatha builds the Dingbots. She and Gil destroy a hive engine activated by Mr. Rovainen. Gil proposes poorly . Klaus, Agatha, and others conclude that Agatha is a Heterodyne, probably Bill and Lucrezia's child. Punch and Judy rescue Agatha but are 'killed' in the process by Von Pinn. Zulenna Luzhakna is killed by Dupree. Agatha flees the castle, along with Othar Tryggvassen (briefly ) and Krosp.

Second arc: Circus and Sturmhalten[]

Relative Date Actual Date Event
+19 years, 6 days Madame Olga is killed by a spider clank.
+19 years, ?? days Klaus reassigns Jägers far from Agatha, ships Moloch von Zinzer to Castle Heterodyne. Othar Tryggvassen chats with Theopholous DuMedd. Klaus sends Merlot to Castle Heterodyne because of 'Miss Clay, the Heterodyne girl'.
+19 years, 7 days Circus helps Agatha fake her death.
+19 years, 8 days Agatha starts Kolee-dok-Zumil training with Zeetha, designs battle circus. Moxana starts a new game.
+19 years, a few days [20]Possibly Wednesday, 21 March 1894 (full moon) Circus arrives at Zumzum a few days after Agatha begins training, meets Othar. Jenka seeks instructions concerning Agatha.
+19 years, a few weeks Circus discovers revenants at Passholdt a few weeks after leaving Zumzum, acquires Da Boyz.
+19 years, 2 months, 1 day Master Payne's Circus of Adventure arrives at Sturmhalten in Balan's Gap, performs for Aaronev VI again. Anevka kills Aaronev VI. Vrin helps an 18-year out-of-date Lucrezia inhabit Agatha using the Holy Machine. Wasp eaters uncover 170 covert revenants aboard Castle Wulfenbach. (First day in Sturmhalten.)
+19 years, 2 months, 2 days — Friday? Klaus deduces that Agatha is alive, deploys to Sturmhalten to capture her. Gil sends Wooster to Sturmhalten, completes primary repairs on Punch and Judy, including Punch's voice. (Second day in Sturmhalten.)
+19 years, 2 months, 3 days — Saturday? [21] Possibly Saturday, 19 May 1894 (full moon) Tarvek shelves Anevka, puts a copy of Lucrezia into her clank. Geisterdamen and the Lucrezia clank move several hive engines and "some sort of machine" from Castle Sturmvoraus to ancient caverns. Tinka and Moxana presumedly remain in Castle Sturmvoraus. Wulfenbach troops fight covert revenants in Sturmhalten. A gigantic projection announces a Heterodyne heiress to the world, claims Klaus is the Other. Lucrezia/Agatha orders Vrin to die, infects Klaus with a special slaver wasp. Klaus kills Lars, meets Zeetha, Daughter of Chump. Agatha drops a house on the wicked Klaus. Circus creates mass Heterodyne apparition. (Third day in Sturmhalten.)
+19 years, 2 months, 4? days — Sunday night Circus departs for England following Battle of Sturmhalten. Sgt. Scorp, Higgs, and Klaus arrive in Mechanicsburg.

Third arc: Mechanicsburg[]

Relative Date Actual Date Event
+19 years, 2 months — Monday morning to midday Agatha enters Mechanicsburg.

Jenka arrives . Zola enters Castle Heterodyne. Agatha makes coffee.

+19 years, 2 months — Monday afternoon (thunderstorm) Carson von Mekkhan uses of Throne of Faustus Heterodyne 437215353 seconds (13.85 years) after he swore never to do it again.

Knights of Jove attack , but are defeated by Gil single-handedly. Gil defeats Vole (and sends him to search for the leader of the KofJ) and is taken to Mamma Gkika’s.

+19 years, 2 months — Monday afternoon late

Agatha enters Castle Heterodyne. Klaus prepares units to destroy Castle Heterodyne. After a few hours Gil wakes up, almost completely healed. Zeetha explains Agatha's relationship to the Other. Gil meets Vanamonde and Krosp, and Zeetha meets Higgs. Klaus takes a walk in the medical mecha. Vole returns with Selnikov’s head. Evening bar fight at Mamma Gkika's

+19 years, 2 months — Monday around sunset Agatha enters the Chapel of Bones and submits to the Test .
+19 years, 2 months — Monday evening

At nightfall, Agatha's Torchmen take to the skies of Mechanicsburg for first time since the attack on Castle Heterodyne, drive off Zola's pink airship and Castle Wulfenbach. Tarvek enters Castle Heterodyne with Violetta. Agatha and Moloch find them and deal with a FSMADD. Gil catches up with Theo and Sleipnir.

+19 years, 2 months — Monday night (fireworks)

Gil attracts the town to the Castle with a fireworks show and fight with Zeetha. Gilgamesh Wulfenbach, Schmott Guy enters Castle Heterodyne.

+19 years, 2 months — Monday night late/early Tuesday

Von Pinn enters Castle Heterodyne. Sgt. Scorp has healed and is back on-duty. Grantz hauls Othar before Klaus in Mechanicsburg. Agatha treats Tarvek. Gil & co. meet Zola & co., and whole group is press ganged. Agatha builds a death ray and falls asleep. Most of Gil & Zola's group fall asleep.

+19 years, 2 months — Tuesday

Moloch succeeds in waking Agatha, who, after checking on Tarvek (who's worse), starts looking for Gil. After a talk with Zeetha, Gil wakes up his group and sends them off. Gil and Zola proceed to the Lion, where Agatha finds them . Agatha subdues Zola and is confronting Gil when Merlot interrupts and injures Gil. Agatha prepares the group to return to Tarvek, when Von Pinn appears , but is disposed of. Agatha, Tiktoffen, Gil, & Zola travel back to Tarvek, encountering many hazards. After examining and reconciling with Gil, Agatha reintroduces him to Tarvek. ... And after further adventures in medicine and engineering, (at one point of which Mittelmind holds up a calendar indicating Friday or Saturday September 19[22]) Agatha shuts down the Castle .

+19 years, 2 months — Tuesday evening/night

Van visits Carson. Klaus tries to escape his hospital room but is sedated by Dr. Sun. Agatha undertakes the si vales valeo procedure, meets the copy of Castle Heterodyne's mind in Otilia's body, and discovers her mother's lab. Von Pinn's body is discovered, and medical treatment begins. Zola acquires a copy of Lucrezia's mind.

+19 years, 2 months — Wednesday

Wooster tips off the Wulfenbach-aligned Jägergenerals that the Baron has plans to destroy Castle Heterodyne. Agatha, Gil, and Tarvek reach the library in order to restore the castle's mind. In the process Zola repeatedly attacks them, but ultimately escapes . Zeetha is injured and taken by Higgs to Mama Gkika's. Zola meets the copy of her in the "Anevka" clank body, and tells her about the wasp infecting the Baron. Dimo tells Boris and the Jägergenerals about Agatha's possession by the Other and her locket.

+19 years, 2 months — Wednesday night

Baron Oublenmach acquires the hammer for the Doom Bell, and spends the whole night taking it up the stairs. The Baron tells a story that conceals information about his possession by the Other. The remainder of the gang in the castle meets up, and Tiktoffen attacks Agatha before ultimately being squashed. Otilia's mind is transferred from "Von Pinn" into a FSMADD. Othar and Sanaa kidnap Tarvek for the Baron. A wide assortment of rogue sparks attack Mechanicsburg, but the Castle is sufficiently repaired to start fighting back .

+19 years, 2 months — Thursday, dawn

The doom bell rings as Agatha emerges from Castle Heterodyne.

The Jaegermonsters return to Mecanicsburg.

+19 years, 2 months — Thursday

Mechanicsburg, with the assistance of Wulfenbach troops, wards off attacks by rogue sparks. Klaus Wulfenbach takes back control of his empire, and accuses Gil of being wasped. He begins sending his own forces out to attack Mechanicsburg. Tarvek saves the last wasp eaters. Martellus von Blitzengaard appears in Mechanicsburg, claiming to be the true Storm King.

+19 years, 2 months — Thursday night

Klaus overlays a copy of his personality onto Gilgamesh. Wulfenbach troops invade Mechanicsburg. Agatha Heterodyne restores Castle Heterodyne to its full power and drives out the invaders.

+19 years, 2 months (+9 days?) — Friday morning

Mechanicsburg is frozen in time by Klaus Wulfenbach. Agatha is captured by Martellus and taken, along with Krosp and Violetta, through the Monolith.

19 years, circa 3 months End of the Pax Transylvania and the resumption of war. By the end of the siege of Mechanicsburg, much of the empire is in rebellion, which soon shatters its control completely .

Fourth arc: Trains and Paris[]

Relative Date Actual Date Event
19 years, 3 months - 21 years, 9 months

With most of the Heterodyne forces' leadership trapped in Mechanicsburg, Dimo becomes a general.

19 years, 3 months - 21 years, 9 months

Gilgamesh Wulfenbach goes to war with the Other. He initially tricks her into believing that she controls him and his troops, but his forces are all dosed with an inoculation draught to prevent them from being controlled by wasps. At a critical moment he reveals that his crew are not her revenants, and begins fighting back.

19 years, 3 months - 21 years, 9 months Gil builds fortifications, statues, and research facilities around the city of Mechanicsburg. Despite interference from the Thorn Hedge, the research staff slowly make progress in "boring" shafts of normal time through the stopped-time area. During an excursion through one of these shafts, an explorer accidentally touches one of the walls of the shaft, resulting in an event known as the "deja-vuquake ".
19 years, 3 months - 21 years, 9 months

A diva called the Queen of the Dawn appears. In a few short years she apparently enslaves all of northern Europa using the Other's tools.

20 years - 21 years, 9 months

Birth of Maxinia Agatha Gilliana Heterodyne Clay.

~20 years, 3 months Summer, 1893†-1895† Dio Zardeliv, a professor and expert on the mechanics of time residing in Paris, is a minor celebrity due to interest in the bubble of frozen time around Mechanicsburg. He is forced underground by a series of assassination attempts, leaving the university about a year and a half before Agatha arrives in Paris, though he is apparently still seen from time to time in the Paris underground.
~20 years, 5 months November, 1893†-1895† Dio Zardeliv's last known sighting in Paris, 412 days before Agatha Heterodyne arrives. His activities after this are largely unknown, but at some point after this he apparently connects with Madwa Korel, a servant of the other, and begins searching for Prende's Chronometric Lantern.
21 years, 9 months[23] December, 1894†-1896† Agatha, Martellus, Krosp, Violetta, and one wasp eater emerge from the Queen's Mirror in the Refuge of Storms.
21 years, 9 months, 3 days [24] December, 1894†-1896† Agatha discovers that she has been sleep-working for several days, and is now in chemical thrall to Martellus. She replicates the chemical effect that Martellus put on himself, allowing the wasp eater to be used as a substitute, and escapes his lab. While Martellus retakes control of the Refuge of Storms, Agatha builds a mechanical sleigh and reindeer to escape . After a scuffle near Mechanicsburg involving Martellus, Xerxsephnia von Blitzengaard, and several Wulfenbach clanks, Agatha is rescued by the Jägers.
21 years, 9 months, 4 days December, 1894†-1896† Gilgamesh Wulfenbach catches up to Martellus, and the two fight. Martellus is rescued by one of the Knights of Jove's clanks, while Gilgamesh is taken away by Bohrlaikha, eventually passing out.
21 years, 9 months, 7 days December, 1894†-1896† Gil wakes up from his long sleep. Agatha sends a message to Gil, explaining the circumstances behind the timeskip and mentioning that Tarvek was poisoned.
21 years, 9 months, 1-2 weeks December, 1894†-1896† Margarella Selnikov, one of the few members of the Storm King plot still claiming loyalty to Tarvek (or at least preferring him to Martellus), steals a key and book that had once belonged to Van Rijn. Being in contact with the Incorruptible Library, she plans to take it to the Library under Paris via the Corbettite railway system. However, Martellus somehow finds out about all of this and begins hunting her, forcing a change of plans. Apparently realizing the risks involved in antagonizing the Corbettites, Martellus also procures an alliance with the Church, or at least with the particular Pope who has authority over the Corbettites.
21 years, 9 months, 1 week, 2 days[25] December, 1894†-1896† Du Quay connects a stolen piece of Castle Heterodyne to a modified telluric wave conductor, intending to use it to take over the entire city of Paris.
21 years, 9 months, 2 weeks?[26][27] December, 1894†-1896†, around 1:02 pm Agatha and Krosp board a Corbettite Railway train heading to Paris from Clankshead Station.
21 years, 9 months, 2 weeks December, 1894†-1896†, around 8:05 pm [28] The Corbettite train leaves Clankshead. Dimo stows away on the train. Agatha meets Margarella Selnikov, who is fleeing from Smoke Knight assassins. Both Gil and Martellus are off chasing decoy carriages, searching for Agatha. Wooster is already aboard, in disguise . Zeetha and Violetta catch up with and board the train, which is stopped by an avalanche and a bridge outage. After being attacked by Count Oömfumf and Count Wolkerstorfer, as well as sapient bears, all searching for Margarella Selnikov, the passengers evacuate into the rear cars, which lift off and travel to the Depot Fortress of Saint Szpac. They leave behind Dimo, who is captured by the bears. Meanwhile, Gil and Higgs enter Mechanicsburg, making contact with Castle Heterodyne and extracting Captain Vole from the time-stopped city. He ages hundreds of years, becoming something similar to a Jägergeneral.
21 years, 9 months, 2 weeks, 1 day (morning) December, 1894†-1896† The Lady Heterodyne and her retinue arrive at Saint Szpac. Brother Ulm is interrogated about his attempts to assassinate her, and eventually made to serve her temporarily as penance. Lady Margarella Selnikov abducts a monk to lead her into the crypts, apparently searching for artifacts of Van Rijn's mentioned in his notebook, but accidentally frees the Beast, leading to her death. Martellus von Blitzengard (along with Gilgamesh Wulfenbach) demands the safety of the Lady Heterodyne; after some of his forces attack the Depot and are retaliated against, he fires the man responsible and lands peacefully. Having allied himself with the church, he is able to bring in a bishop with authority over the Corbettites (who happens to also be his uncle), presumably planning to force the Corbettites to hand over Margarella. (He claims that he is willing to let Agatha continue to Paris.) However, the release of the Beast forces Martellus to instead assist in the defense of the Depot Fortress. While searching the vaults for weapons to use against the Beast, Agatha finds Selnikov's remains, with the key and book, luckily just before running into Martellus, who arrived there after fleeing from the Beast . Martellus and Agatha construct magnetic weapons to distract and imprison the Beast during the fight, and take an elevator back to the surface.

Agatha's group, Martellus and his forces, and the Corbettites fight the Beast, attempting to deprive it of sources of metal and energy. The sapient bears show up (with Dimo in tow) and recognize Krosp as their master. Count Wolkerstorfer also arrives and lends his assistance. Eventually they are able to deprive the Beast of resources by cutting off all of its "cars" and dropping them down an elevator shaft. However, since it is still dangerous, König and Brother Ulm board the Beast and disconnect its core mind unit , causing the remainder of the Beast to explode and killing Brother Ulm.

21 years, 9 months, 2 weeks, 1 day (evening)[29] December, 1894†-1896† Gilgamesh Wulfenbach arrives at the Depot Fortress, where Agatha and Martellus are working on reanimating/integrating Brother Ulm's mind into an experimental train, using a modified Si Vales Valeo System Transferal Procedure. Bangladesh Dupree meets Zeetha and Violetta, while Martellus, the copy of Lucrezia in Agatha, and the copy of Klaus in Gil all meet each other. Since all of them are served drugged cake by the Corbettites, everyone but Violetta and Martellus passes out. Martellus is unable to resist this opportunity to capture both Agatha and Gil, but Violetta knocks him out before he can abduct them. While they are unconscious, Gil and Dupree are removed from the train, while Krosp and most of the bears leave voluntarily, on a mission to infiltrate Wulfenbach forces and rescue Dimitri Vapnoople. König remains behind as the engineer for the train that Brother Ulm now inhabits, training with him under the guidance of the monks and the Beast. This train escapes the Wulfenbach forces surrounding the Depot Fortress by tunneling underground.
21 years, 9 months, 2 weeks, 2 days (daytime) December, 1894†-1896† Agatha wakes up and is reunited with Dimo. She disconnects the Beast from Brother Ulm, leaving Ulm in complete control of the train. Her group enters Paris, along with Martellus, who is quickly met and taken away by Seffie to see Grandmother. The group visits a bakery for cake, but are interrupted by an attack by Pierre van Stron and subsequent counterattack by Jiminez Hoffmann. Drusus Beausoleil then abducts Agatha, taking her to Du Quay's lair, where she finds the piece of Castle Heterodyne that has been taking over the city. She takes command of it, foiling the plot to depose the Master, but is then taken into the Master's custody herself. The Master tells her (at about 3:20 ) that she will only be allowed to remain in Paris for three more days. She then returns to Du Quay's lair, and transfers the fragment of Castle Heterodyne's mind there into a tiny clank. The Castle coerces Drusus into mentioning Dio Zardeliv and his interest in the Van Rijn notebook.

After heading to her accommodations in the Voltaire family's château, Agatha consults the notebook and finds references to Prende's lantern. She resolves to visit the Black Market to look for clues and supplies. Hoffman, who reveals that he had been spying on them, is taken with them. Colette Voltaire sends a note to Seffie, pretending that the Master had requested that her upcoming party be made a masked ball. Seffie suspects that Colette is mostly trying to keep Martellus away from whatever Agatha is up to, so she sends a smoke knight , Varpa, to interfere with Martellus's spy.

Meanwhile, Gil and Dupree return to Castle Wulfenbach, and are confronted with more news about the Other, including the Queen of the Dawn's takeover of the North, and the new miniaturized hive engines.


Fifth arc: London and the Dome[]

Relative Date Actual Date Event
Wooster suggests Agatha and friends go to England to meet Madwa and Dio Zardeliv at the Londinium docks.
21 years, 10 months, 1 week[30] January, 1894†-1896† Krosp and Agatha are reunited. Dimitri Vapnoople (as the mentally traumatized "Dr. Dim") returns to England.
The Queen's ball following Agatha's return from the Dome and Ahnkokanth: Lars' death "last month" for her.

Sixth arc: Big Rat Island; Polar Lords[]

Relative Date Actual Date Event

In the future[]

Relative Date Actual Date Event
(in the future?) The enigma uses a time window device device to view Agatha in downtown Beetleburg
(in the future) Agatha uses a time window device with Gil, Moloch, and a Geisterdame.

† marks relative or absolute dates that are off by 100 years if Klaus Barry Heterodyne was born in 1972.

Other sources of Internal Chronology[]

an entry in girl genius lab


  1. It could also be a 9 but this is a Gaslamp Fantasy and according to Kaja that means the Victorian era.
  2. To simplify this page, the birth is assumed to be in 1872 and calculated dates that may be off by 100 years are marked with (†).
  3. As the circus approaches Strumhalten they mention few passes have open up yet .
  4. Hippocrates Brunel says that the Mirrors were "old even before the rise of the Queens."
  5. Queen Albia of England was alive before the English Channel existed . In the real world, the Weald–Artois Anticline was eroded until the English Channel formed "about 6500–6200 BCE."
  6. There is a piece that appears to represent a God-Queen, accompanied by a plaque dating it to 1000 BCE, in the Royal Collection of Inconvenient Oddities.
  7. Assuming that Meton of Athens lived at about the same time in the story as the real-world Greek astronomer and clockmaker.
  8. The first date is the date that the current structure was apparently constructed; it seems unlikely (though theoretically possible) that the consciousness of Castle Heterodyne is older than the structure itself. The second date is the date of the earliest dated event that the Castle has described as an eyewitness, which is Robur Heterodyne's time-stopping experiment.
  9. This assumes that François_Mansart lived and died at roughly the same time in the Girl Genius universe as in real life.
  10. Agatha H. and the Voice of the Castle, page 162
  11. According to Castle Heterodyne , Robur's experiment was about 300 years before Mechanicsburg's time stop.

    5) Ages! The generals are somewhere between 600-700 years old, Dimo is about 300, and Oggie and Maxim are around 250-300. Maxim is the youngest of the three. Phil has the exact ages written down somewhere but he couldn't remember off the top of his head.

  13. Oggie says they fought A hunnert years ago? Mebbe more . That gives an upper bound of 1779† and Maxim's birth, "1593† to 1643†", gives a lower bound.
    Only the very best and strongest soldiers were chosen to become Jägerkin, so Maxim was likely at least 15, that gives a more likely 1608†.
    The Red Heterodyne and The Black Heterodyne were brothers and had philosophical disputes with each other. The Black Heterodyne was born in 1596. If we assume The Red Heterodyne to be born around the same decade as the Black Heterodyne and The Red Heterodyne's life not being extended beyond a normal lifespan, say 100 years, then that gives a more likely 1696†.
  14. This date would make sense if this is a reference to the "Year Without a Summer", which happened in 1816 in the real world and caused a massive famine in central Europe.
  15. Agatha H. and the Clockwork Princess refers to Gil as "looking down from 22 years" at the time of the Sturmhalten events.
  16. Girl Genius Novelization
  17. Girl Genius Novelization
  18. Agatha H. and the Clockwork Princess p276
  19. Around the time of a full moon.
  20. Around the time of a full moon .
  21. Around the time of a full moon .
  22. The nearest years to 1894 in which Sep 19 fell on Friday or Saturday: 1890(F), 1891(S), 1896(S). Possibly relevant: 2008(F), 2009(S). Let's assume that Mittelmind held up a random calendar page hoping no one would notice its irrelevance.
  23. This is supposed to be two and a half years after Mechanicsburg is frozen, but given that it's supposedly deep winter, and that we assume that 19 years and 0 months is in March, it makes sense to round up so that the story is at least in December at this point.
  24. A full moon .
  25. Extrapolating from this scene's estimate of a week since the apparatus was put together.
  26. At the time of this writing, it's not clear how much time elapsed between the timeskip and Agatha boarding the train; we know that at least one week has passed, but Agatha describes the amount of time as only "a few days ". Two weeks (or 11 days after the last full moon seen) would be consistent with a waning crescent moon phase on this date.
  27. Note that Agatha doesn't seem to have fully adjusted to the timeskip when boarding the train, since she mistakenly says that the Other War began 19 years earlier. While that's true from her own perspective, for the rest of the world it was really closer to 22 years.
  28. This occurs during a Crescent moon . In the northern hemisphere, especially during the winter, the moon tends to be closer to the southern horizon, so a crescent moon with the light side on the left and "horns" on the right is waning (and this is traditionally how a waning moon is depicted). However, all depictions of the moon on this night seem to be very early in the (very long and eventful) night, whereas a waning crescent moon only rises a few hours before dawn. (A waxing crescent moon, however, would be seen in the evening just after sunset.) Also, the real-life moon never looks like the moon in the comic anyway, since the moon only takes on the crescent shape when more than half "dark". So we can assume that either the Girl Genius moon does not behave like the real world moon, or some artistic license is being taken.
  29. It is unclear whether these events happen on the same (very busy) day as the defeat of the Beast, or the next day. However, Gil implies that less than a full day has passed since Agatha arrived at the Depot Fortress, and the fires from the battle are still burning.
  30. Less than three weeks after Krosp leaves Agatha following the defeat of the Beast.