[4] During this period, the prominent scholar Shaykh Ibrahim Gulshani (died 1534) advocated that Qazi Isa should be made the tutor of Uzun Hasan's son Ya'qub Beg.
The Encyclopaedia Islamica considers the truthness of his claim uncertain, stating that; "It must be reiterated that his information on the impact of these reforms mainly refers to Fars, however it is virtually the only contemporary source on the topic and therefore central to any understanding of it.
"[5] By 1489, Qazi Isa had virtually cemented his hold over the Aq Qoyunlu realm along with his cousin Najm al-Din Mas'ud Savaji, who was in the same year appointed amir-i divan (deputy of the sultan).
[5][6] At the time of Ya'qub's death, the Turkmen officer Sufi Khalil Beg Mawsilu found himself in a favourable position as the head of the political and military preponderance in the winter quarters of Qarabagh.
[11] Qazi Isa's nephew Najm al-Din Mas'ud Savaji managed to escape for a short while, until he was poisoned by Mulla Jan at the instigation of Sufi Khalil.