On this day, June 20 according to the Julian Calendar (July 3 civil calendar), the Georgian Orthodox Church commemorates Saint Callistus, Patriarch of Constantinople.
Saint Callistus led the Church of Constantinople during the reigns of Emperors John Cantacuzenus (1341-1355) and John Palaeologus (1341-1376). The holy hierarch labored on Mount Athos before being elevated to the patriarchal throne. He was a devoted defender of Orthodox theology and monastic life. He reposed in the Lord around the year 1363 and was numbered among the saints.
May the intercessions of Saint Callistus, Patriarch of Constantinople, be with us all.