Why did Pope Gregory and Henry IV come into conflict?

A.
The pope claimed the authority to remove the emperor from the throne.

B.
The pope named a different emperor to replace Henry.

C.
Henry's land was seized by the pope.

D.
Henry tried to remove the pope from power..

D. Henry tried to remove the pope from power.

The correct answer is:

D. Henry tried to remove the pope from power.

Pope Gregory VII and Henry IV came into conflict primarily because Henry attempted to remove the pope from power. Henry, as the Holy Roman Emperor, sought to assert his authority over the Church and appoint bishops loyal to him rather than the pope. In response, Pope Gregory VII excommunicated Henry and released his subjects from their loyalty to him. This conflict between the emperor and the pope was known as the Investiture Controversy and lasted from 1075 to 1122.