Saint Leo the Great

c. 400 – 461 · Post-Nicene Latin Fathers · Latin (Rome)

Commemorated February 18 →

Pope of Rome (440–461); a saint and one of two Western popes traditionally given the title "the Great." His dogmatic Tome (Letter to Flavian of Constantinople) was acclaimed as the touchstone of orthodox Christology at the Council of Chalcedon (451): "Peter has spoken through Leo." The Tome and his sermons fix the Latin vocabulary for the Chalcedonian definition of the two natures united in the one Person of Christ. Commemorated in the Orthodox Church on 18 February.

Icon: Pope Leo I · Authors of Menologion of Basil II (circa 985 AC, Constantinople), Byzantine manuscript illuminators[1]: Pantoleon with Georgios, Michael the Younger, Michael of Blachernae, Symeon, Symeon of Blachernae, Menas, and Nestor (Online on Vatican site) · Public domain