Armenian Catholicos
d. 1058
32nd Catholicos of All Armenians
Peter I, known as Petros Getadardz in Armenian, was the Catholicos of the Armenian Apostolic Church between 1019 and 1058. He was the brother of a former Catholicos Khachik I. He was the author of several works of sermons, anthems, and elegies on early Christian martyrs.
Sivas