Buyan Kuli khan Mausoleum
Buyan-Kuli Khan (Bayan-Quli), Duva’s grandson, (d. 1358) was Khan of the Chagatai Khanate from 1348 to 1358. In 1348 Bayan-Quli was raised to the position of Khan by the ruler of the Qara’unas, Amir Qazaghan, who had effectively taken control of the Chagatai ulus in 1346. For the next decade he remained Qazaghan’s puppet, exercising little real authority. In 1358 Qazaghan was assassinated and succeeded by his son Abdullah. Not long after his ascension, Abdullah had Bayan-Quli Khan killed and selected a new puppet, Shah Temur, to succeed him. Bayan-Quli’s death was used as a pretext by Abdullah’s enemies to bring about his downfall that same year.
Mongols, before their intrusion into Maverannahr and Semirechye were heathens. However, in 14-ht century more of them have adopted Islam. Bayan-Quli Khan was a Moslem and a faithful stalwart of Saif ed-Din Boharsi. Therefore, he was buried opposite the sheikh grave. The mausoleum rises above the Bayan-Quli Khan grave since 1358.
The dinars, coined in Shahrisabz in 1357 (758), became a good evidence of Bayan Quli's piousness, because of saying, engraved on them: "Bayan-Quli-bahadur Khan is the greatest sultan. May Allah prolong his reign".