Gregory (c.335-394) was bishop of Nyssa in modern day Turkey, and a
theologian famed for his doctrines on the Trinity, and the infinity of God. He, together with his brother Basil the Great, and his friend Gregory of Nazianzus, are known as the Cappadocian Fathers.
He is the younger brother of Macrina (330-379) who was a nun, and founder together with her brother Peter of a monastery and convent at the family estate at Pontus, now in Turkey. Her father had arranged for her to be married, but her fiance died before the wedding, after which she devoted herself to religion.
Lord of eternity, creator of all things,
in your Son Jesus Christ you open for us the way to resurrection
that we may enjoy your bountiful goodness:
may we who celebrate your servants Gregory and Macrina
press onwards in faith to your boundless love
and ever wonder at the miracle of your presence among us;
through Jesus Christ our Lord.