 Al @-@ Mu 'azzam Turan @-@ Shah alienated the Mamluks soon after their victory at Mansurah and constantly threatened them and Shajar al @-@ Durr . Fearing for their positions of power , the Bahri Mamluks revolted against the sultan and killed him in April 1250 . Aybak married Shajar al @-@ Durr and subsequently took over the government in Egypt in the name of al @-@ Ashraf II who became sultan , but only nominally . 
