The Church remembers a myriad of Bishops and Church Fathers among its saintly rolls, yet whenever we specifically mention the Three Holy Hierarchs, we are referring to the writers of our three liturgies: St. Basil the Great (d. 379), Archbishop of Caesarea in Cappadocia; St. Gregory the Theologian (d.389), Bishop of Nazianzus and Archbishop of Constantinople; and St. John Chrysostom (d. 407), Archbishop of Constantinople. Although each of these saints is commemorated by the Church on his own day, January 30th of each year is set aside to honor them collectively.
Interesting fact: Because these particular Hierarchs were so prestigious in theology, writing, and preaching, it is quite common for a seminary to have a Chapel dedicated to their memory.
