The Gilded Duke led an army that lost to Baron Klaus Wulfenbach prior to the beginning of the main narrative. The Duke's name and home are unknown. Whether he survived his confrontation with the Baron and where he may be now are likewise unknown. What is known about the Gilded Duke comes from rather minor references in the story.
- Baron Wulfenbach defeated the Gilded Duke about a year before the beginning of the main narrative. The Duke had an army of construct minions, the Lackya, which the Baron added to his forces, much as he once took the Jägermonsters into his forces. (However, some Jägers would not find the comparison ).
- According to Da Boyz, the last "rebellion vorth spit" against The Baron's Peace was led by "dot magnetic prince guy" before the start of the main narrative. Apparently, the Jägermonsters do not consider the Gilded Duke to have led a significant rebellion.
- Balthazar's father (now of Master Payne's Circus of Adventure) appropriated the clank called Smilin' Stev as he escaped from the defeat of the Gilded Duke by the Wulfenbach forces. Balthazar believes that Smilin' Stev offsets wages owed to his father by the Duke. Smilin' Stev has a "gilded" .
One suggestion for the Duke's identity is discussed at Duke D'Omas/Mad.