Nicetas Choniates gives a vivid account of the sack of Constantinople by the Frankish and Venetian Crusaders of the Fourth Crusade : During this era , Roman Catholic-Orthodox relations were at their lowest point , and the retaliation during the Massacre of the Latins would solidify the severed ties from the Great Schism that would divide Christianity on a level that would be unseen until the Protestant Reformation
Massacre of the Latins
Massacre of the Latins
Ecumenical Patriarchate of Constantinople