He captured his younger half-brother Maqsud Beg (son of Despina Khatun) and executed him.

In the same year, he defeated his uncle Murat Bey Bayandur and reached the height of his power.

On the order of Sultan Yaqub, H. 14 Rebiül was executed (June 15, 1478) on a Monday.

His half-brother Ughurlu Muhammad was taken by Ottoman Sultan Mehmed II and married his daughter Gevherhan Hatun.

Their son Ahmad Beg finally took the throne but died in battle shortly after.