Elector Count State Troops
Each Elector count in The Empire has access to a unique unit. When the player conquers their province and appoints their own count, or confederates through the Fealty system, they gain access to their provincial unit. Multiple units can be recruited, (one every fifteen turns) so they can serve as a strong bolster to many armies. These units function similarly to a regiment of renown, having unique abilities and better stats to differentiate them.
Reikland: Carroburg Greatswords (Greatswords)
Although not initially starting off with an elector count, if reconquered and an elector count reappointed, the player will gain access to these units as well.
Sylvania: Knights of Morr (Empire Knights)
Link to unit cards as well as elector count bonuses: https://i.redd.it/r5w8jj9k0nl31.png