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.
Jad (fictional god) Jad is a fictional solar god found in the works of Guy Gavriel Kay, including "The Sarantine Mosaic" series, "The Lions of Al-Rassan" and "The Last Light of the Sun". In these books, all set in a fictional world loosely based on Europe during late antiquity and the early Middle Ages, Jad serves as an analog to God, as the focal point for an organized church (or group of churches) similar to the Roman Catholic and Eastern Orthodox churches. In addition to the mainstream church of Jad, there are a number of heretical and schismatic movements alluded to or described. The main division in the Jaddite faith stems from belief or disbelief in Heladikos, a fire-bearing celestial charioteer, and son of Jad. Heladikos is the Jaddite analogue of Jesus. Belief in Heladikos is outlawed as heretical by the time of Emperor Valerius II, an analogue of Justinian I. This is a marked difference from actual Christianity, which is formed around faith in the son of God.