Indeed at one time in Azizs reign the vizierate of Egypt was held by a Christian, Jesus, son of Nestorius, who appointed as his deputy in Syria a Jew, Manasseh b.
This vizier was presently assassinated by the direction of his stepson Abbs, who was raised to the vizierate in his place.
In 1656 he was appointed governor of Tripoli; but before he had set out to his new post he was nominated to the grand vizierate at the instance of powerful friends.
Had he so desired, Kuprili might have taken advantage of the revolts of the Janissaries to place himself on the throne; instead, he recommended the sultan to appoint his son as his successor, and so founded a dynasty of able statesmen who occupied the grand vizierate almost without interruption for half a century.
The humane and tolerant measures provided for in the " nizam-i-jedid," or new regulations for the better treatment of the Christians enacted by Mustafa Kuprili during his grand vizierate (1689-1691), did for a time improve the position of the rayas.