Jalal al-Din Mas'ud Shah

Jalal al-Din Mas'ud Shah was a son of Sharaf al-Din Mahmud Shah. After his father was executed by the Ilkhan Arpa Ke'un in 1335, he fled to the Jalayirid Hasan Buzurg; when Arpa was later captured by rebels, Mas'ud Shah had him killed.

He served as vizier to the Jalayirid puppet Ilkhan Muhammad Khan, then contested Shiraz with his brother Kai-Khusrau until the latter died in 1338/39. Driven out by the Chobanids, he allied with Yagi Basti, who murdered him in 1342.