St Peter the Bishop of Sebaste, in Armenia

Saint Peter, Bishop of Sebaste, was a brother of St Basil the Great and St Gregory of Nyssa (January 1 and January 10). His older sister, St Macrina (July 19) played a large role in his upbringing.

St Basil the Great ordained St Peter as presbyter, and later he was made Bishop of Sebaste (in Armenia). St Peter was present at the Second Ecumenical Council in the year 381, convened at Constantinople against the heresy of Macedonius.