Izz al-Din Jafar

Izz al-Din Jafar was a son of the Eretnid founder Ala al-Din Eretna and briefly ruled as the dynasty's sultan. On Eretna's death in 1352 his younger brother Ghiyath al-Din Muhammad took the throne at Kayseri and imprisoned Jafar, who escaped to Mamluk Egypt.

In 1354 the Eretnid emirs deposed the incompetent Muhammad and raised Jafar to the throne. He reigned for less than a year: in April 1355 Muhammad defeated and killed him at the Battle of Yalnızgöz and recovered the sultanate.