Shams al-Din
Yahya, an aristocrat, came to power after the assassination of Khwaja Shams al-Din 'Ali in around 1351. He had been informed beforehand about the assassination plot, and afterwards protected Shams al-Din 'Ali's murderer, Haidar Qassib. Unlike his predecessor, Yahya was a religious moderate and did not maintain many of Shams al-Din Ali's social programs.