Career
He ruled from 1221-1255. He was the only surviving son of Jalaluddin Hasan, whom he succeeded at the age of 9 years old, in 1221. However, upon succession he was initially too young, so Ḥassan III"s vizier controlled the state.
His rule was described as "cruel, imperious, sadistic, alcoholic, and unpredictable."
Muhammad III was murdered in 1255 by Hasan Mazandarani.