Cult of Sigmar
The largest and most powerful religious organization in the Empire under direct control of the Grand Theogonist of Sigmar. He has two powerful Arch Lectors, one in Nuln and the second in Talabheim. The cult writes Sigmarite Law which shapes the political structure of the Empire itself.
The cult is generally on good terms with most Dwarf clans and it’s common knowledge that most members have grown fat and rich, if not corrupted by their power and wealth.
Currently the Grand Theogonist is focusing on taking the throne, replacing deceased emperor Karl Franz and has many supporters though not yet a strong majority.