The political faction that Sigmar Heldenhammer is the patron deity of is based on what real-world empire?
The Empire (Warhammer) In Games Workshop's "Warhammer Fantasy" fictional universe, The Empire is one of the human political factions and armies, and is featured in many games and novels. In terms of location, language, culture, and society, it is clearly based on the real-world medieval Holy Roman Empire.
Order of Hermes (Ars Magica) The Order of Hermes is a fictional mystical group of wizards in the role-playing game "Ars Magica" by Atlas Games, set in Mythic Europe.