What different views of the role of the church in government did the eastern and western churches have

The different views of the role of church in the government that the Eastern and Western churches had were that at the Eastern church the emperor controlled both church and government. In the West the pope claimed he had religious and political authority over all Europe he often quarreled with kings about church and government affairs.

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.