Psydon
The first True God, Psydon is the creator of all things. He is believed dead by the Church of the Successors. There are many who do not share this belief.
Those who worship Him believe that the Church worships false gods - that in reality, they are merely manifestations of Psydon's holy divinity, as the one true God.
His worshippers are the people of Giza, as well as the Inquisition, and they tend to be extremely zealous.
"Psydon LIVES!"