Peter of Sebaste was a bishop, taking his usual name from the city of his bishopric, Sebaste in Lesser Armenia. He was the younger brother of Basil of Caesarea, Gregory of Nyssa, the famous Christian jurist Naucratius, and Macrina the Younger. He is also known as Peter of Sebasteia. Peter was not intellectually inferior to the more celebrated members of his family, but his genius "seems to have been rather practical than literary".