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What happened at the Synod of Worms in 1076?

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Gregory VII excommunicating Henry IV — St. Gregory VII Pope Gregory VII, after his expulsion from Rome, laying a ban of excommunication on the clergy “together with the raging king” (Henry IV of Germany), drawing from the 12th-century chronicle of Otto of Freising; in the library of the University of Jena, Germany.

At the assembly held in Worms on January 24, 1076, Henry IV and a majority of the German bishops formally renounced their obedience to Pope Gregory VII.12

This action was a direct response to a letter from the pope that had criticized Henry’s appointments of bishops in Italy and his continued association with previously excommunicated advisers. Rather than negotiating, Henry demanded that Gregory abdicate the papacy and called upon the Romans to elect a new pope.312

This confrontation transformed a specific dispute over church appointments into a fundamental conflict regarding the relationship between church and state. In response to the events at Worms, Gregory VII excommunicated Henry IV and deposed him, effectively releasing the king's subjects from their oaths of allegiance. This escalation marked a pivotal moment in the Investiture Controversy, a struggle for authority that would continue for decades.2314