The sources do not provide detailed information about Uzun Hasan's reformist activities. Although the texts of his laws has not reached us, it is possible to judge the reforms on the basis of little information about the laws that the chroniclers called "King Hasan's Laws" or "Dasturi-Hasan Bey". Some documents related to the western territories of the Aq Qoyunlu state, which became part of the Ottoman Empire (Diyarbakir, Mardin, Urfa, etc.) are kept in the Turkish archives. These sources are important in terms of studying feudal relations in the provinces of the Aq Qoyunlu. The general nature of Uzun Hasan's reform is stated in "Tarikh al-Qiyasi":