"Pontifex Maximus" was originally the high priest of Jupiter in Rome, dating all the way back to the Roman monarchy and before the Roman republic. "Pontifex Maximus" is currently the official title of the pope (in a sense, still the highest priest in Rome). I don't think anybody still has the title "Pharaoh".
For a while the Pharaoh did actually reside in Rome, starting with Caesar Augustus (who was also Pontifex Maximus). Augustus was hailed as a god by both the Roman imperial cult and the pharaonic cult.
Maximinus Daza (the eastern Roman emperor during the Tetrarchy) was the last holder of the title Paraoh, and I think he reigned from Nicomedia, in Anatolia.
It’s funny that Pharaoh died out with the rise of christianity, but Pontifex lived on.
