What increased tensions between the pope and the Byzantine emperor prior to the great schism?

Question

A. The pope alliance with the byzantines enemies the lombards
B. The emperors tolerance of religious minorities such as Muslims
C. The emperors refusal to contribute troops to the crusades
D. The popes crowning of Charlemagne as emperor of Rome

Answer 1

The correct answer is D. The popes crowning of Charlemagne as emperor of Rome.

This event was significant as it marked a claim by the Pope to have authority over the Western Roman Empire, which was seen as a direct challenge to Byzantine authority, as the Byzantine Emperor also viewed himself as the successor to the Roman emperors. This act contributed to the growing tensions that would culminate in the Great Schism of 1054.