Arpa Ke'un

Arpa Ke'un (died 1336) ruled Persia as Ilkhan from 1335 to 1336. A descendant of Hulagu's brother Ariq Böke, he was placed on the throne by vizier Ghiyas al-Din after Abu Sa'id died heirless.

He defeated an invasion by Özbeg of the Golden Horde, executed Abu Sa'id's former wife Baghdad Khatun, and married his sister Sati Beg. Preferring Genghis Khan's Yasa to Islam, he was challenged by Ali Padshah, whose puppet Musa defeated him in 1336; Arpa was captured and killed on 15 May 1336.