 His title Pervâne means "personal aide of the sultan"

After Kaykhusraw’s death and the ensuing dispute among his sons for the throne, the Pervâne supported Kilij Arslan IV and succeeded in having him declared as the successor.In the same period, he also took Sinop and twelve surrounding castles from the Empire of Trebizond and the region was accorded to him and his family as an iqta.His growing power made him worry that the sultan Kilij Arslan IV might want to eliminate him and he took the initiative by having the sultan strangled in Aksaray in 1265.