Analysis of information sources in references of the Wikipedia article "Al-Aziz Jamal al-Din Yusuf" in English language version.
...on the 7th of June 1438. In accordance with the custom of his predecessors he left the throne to a son still in his minority, Abu'l-Mahāsin Yūsuf, who took the title Malik al-'Azīz, but as usual after a few months he was displaced by the regent Jakmak, who on the 9th of September 1438 was proclaimed sultan
