as his wife.

Prusias expanded the territories of Bithynia in a series of wars against King Attalus I of Pergamon and Heraclea Pontica on the Black Sea, taking various cities formerly owned by the Heracleans and renaming one of them, Cierus, to Prusias after himself. While besieging Heraclea Pontica, Prusias was hit with a stone while climbing