Sol Imperii

Sol Imperii, commonly known as the First Emperor, is the Sun God of the Cyros. Considered omnipotent and the spiritual founder of the the Empire, his Church of Sol Imperii is one of the great powers of the Empire.
His word is said to be delivered to his followers through the Scriptura Solis, and his worldly representative is the Patriarch, Theotokos Cauterised-of-Sin.