Answer
Baibars killed Qutuz, the sultan of the Mamluks, in 1260. Baibars was a Mamluk commander who had risen through the ranks of the military. He was a skilled warrior and tactician, and he was also a ruthless and ambitious man. He saw Qutuz as a rival, and he took advantage of Qutuz's unpopularity among the Mamluks to stage a coup and kill him.