St Cosmas the Protos of Mount Athos and his companions (ca. 1274)

“Determined to impose the union of the Churches accepted under pressure at the Council of Lyon (1274) to secure Papal support for the Byzantine Empire, Michael VIII Palaeologos sent troops to Mount Athos, the stronghold of Orthodoxy and centre of opposition to his policy, with orders to take sanguinary measures against monks who would not recognize the false union.