However, he does not qualify this quote by mentioning the tensions between Orthodox and Latin clergy. During the fall of Constantinople such divisions were lucidly apparent and remained till the very end an obstacle between the full aid and empathy of the Latin West.

QUESTION: What specific tensions divided Orthodox and Latin clergy during the fall? This could be worth investigating further. Pays off: "Theological conviction outweighed military survival for Orthodox clergy."

Ali Qureshi, The Fall of Constantinople, loc. 48