At some stage , Amida became a see of the Armenian Christians . The bishops who held the see in 1650 and 1681 were in communion with the Holy See , and in 1727 Peter Derboghossian sent his profession of faith to Rome . He was succeeded by two more Catholic Armenians , Eugenius and Ioannes of Smyrna , the latter of whom died in Constantinople in 1785 . After a long vacancy , three more bishops followed . The diocese had some 5,000 Armenian Catholics in 1903 , but it lost most of its population in the Armenian Genocide . The last diocesan bishop of the see , Andreas Elias Celebian , was killed with some 600 of his faithful in the summer of 1915
Armenian Genocide
Armenian Genocide
Diyarbakır