What's the noun for pharaohs? Here's the word you're looking for.
pharaoh
The supreme ruler of ancient Egypt; a formal address for the sovereign seat of power as personified by the 'king' in an institutional role of Horus son of Osiris; often used by metonymy for Ancient Egyptian sovereignty
“These passages could be seen in the socio-political sweep of their emperors, Caesars, and pharaons as case studies in forced labor and territorial control.”