By undercutting the Imperial power established by the Salian emperors, the controversy led to nearly 50 years of civil war in Germany, and the triumph of the great dukes and abbots, until Imperial power was reestablished under the Hohenstaufen dynasty.
In the end, Henry IV journeyed to Canossa in northern Italy in 1077 to do penance and to receive absolution from the pope.
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He was first mentioned in a 1048 deed issued by the Salian emperor Henry III as a count in the Swabian Sisgau on the High Rhine (in present-day Northwestern Switzerland), an estate then held by the Prince-Bishopric of Basel.