In response, the Emir forced the Patriarch of Alexandria, Matthew I, to send a deputation to Dawit to persuade him to retire back to his kingdom. Taddesse concludes, "There seems to be little or no doubt that, on the eve of the advent of the Burji dynasty of Mamluk Egypt, King Dawit had in fact led his troops beyond the northern frontiers of his kingdom, and created much havoc among the Muslim inhabitants of the area who had been within the sphere of influence of Egypt since the thirteenth century."[2] The Emperor apparently had a much friendlier relationship with the Sultan's successor, for according to the medieval historian al-Maqrizi, Dawit sent 22 camels laden with gifts to Berkuk, the first Sultan of the Burji dynasty.[3]