Saint Callistus, Patriarch of Constantinople

Life

Callistus was called Xanthopulos after the cell of Xanthopoul on Mount Athos, where he struggled ascetically for a long time with his friend Ignatius. With this Ignatius, Saint Callistus wrote his own account of the silent life in one hundred chapters. This work occupies a very prominent place in ascetical literature. Callistus was under the great influence of his teacher Saint Gregory of Sinai, whose Life he wrote. As Patriarch of Constantinople, Saint Callistus once went to Serbia, and on that journey he fell ill and died (as Saint Maximus Kapsokalivis in the Holy Mountain had predicted to him before the journey).