Rubuta ci gaba don wannan sakin layi - Yadegar Mokhammad (, Yädkär, Yädegär, ) (ya mutu a 1565) shi ne khan na ƙarshe na Kazan Khanate, yana riƙe da matsayin daga Maris zuwa Oktoba 1552. Shi ne dan Astrakhan khan Qasim II. Tsakanin 1542 da 1550 ya kasance a cikin sabis na Tsardom na Rasha. A shekara ta 1550, ya shiga cikin harin da aka kai wa Kazan sannan ya shiga Nogais. Bayan sojojin Ivan the Terrible sun kusan kawo Kazan Khanate ga shan kashi a 1550, a cikin 1551 "jam'iyyar zaman lafiya" a Kazan ta hau gadon sarautar khan Shah Ali. A shekara ta 1552 "jam'iyyar kishin ƙasa" da ke hamayya da Rasha ta sake samun iko. Shah Ali ya gudu kuma Qol Sharif da Chapqin bek Otich uli (Çapqın bäk Otıç ulı, ) sun gayyaci Yadegar zuwa kursiyin Kazan Khanate. Daga baya, ya jagoranci yaƙi da mamayewar Rasha (duba Siege of Kazan
) Ya ce: An kama shi a watan Oktoba 1552 lokacin da sojojin Rasha suka kama Kazan. A shekara ta 1553 ya tuba zuwa Kiristanci, ya ɗauki sunan "Simeon Kasayevich" kuma ya zauna a Moscow a matsayin mashahurin Rasha.