He opposed the emperor in the late twelfth-century phase of the Investiture Controversy.

He was forced to break off his campaign owing to political problems arising from the Investiture Controversy.

He was an important mediator during the height of the Investiture Controversy.

Rottenbuch was a center of papal loyalty during the Investiture Controversy.

This led to the conflict known as the Investiture Controversy.

One hypothesis is that the richest families used them for offensive/defensive purposes during the period of the Investiture Controversy.

During the Investiture Controversy, Pfäfers again fell under foreign control, however.

The Investiture Controversy of the 11th century brought further conflict.

Simony was also one of the important issues during the Investiture Controversy.

The event is often cited as the beginning of Investiture Controversy.