Antipope Honorius II

Honorius II (ca. 1010 - 1072), born Pietro Cadalo (Latin Petrus Cadalus), was an antipope from 1061 to 1072. He was born at Verona and became bishop of Parma in 1046. He died at Parma in 1072.

After the death of Pope Nicholas II (1059–61) in July 1061, two different groups met to elect a new Pope. The cardinals met under the direction of Hildebrand (who later became Pope Gregory VII) and elected Pope Alexander II (1061–73) on 30 September 1061. Alexander II had been one of the leaders of the reform party in his role as Anselm the Elder, Bishop of Lucca.

Twenty-eight days after Alexander II's election an assembly of German and Lombard bishops and notables opposed to the reform movement was brought together at Basel by the Empress Agnes as regent for her son, Emperor Henry IV (1056–1105), and was presided over by the Imperial Chancellor Wilbert. They elected on 28 October 1061, the bishop of Parma, Cadalus, who assumed the name of Honorius II.

With the support of the Empress and the nobles, in the spring of 1062 Honorius II, with his troops, marched towards Rome to claim the papal seat by force. Bishop Benzo of Alba helped his cause as imperial envoy to Rome, and Cadalus advanced as far as Sutri. On 14 April a brief but bloody conflict took place at Rome, in which the forces of Alexander II lost and antipope Honorius II got possession of the precincts of St. Peter's.

Duke Godfrey of Lorraine arrived in May 1062, and induced both rivals to submit the matter to the King's decision. Honorius II withdrew to Parma and Alexander II returned to his see in Lucca, pending Godfrey's mediation with the German court and the advisers of the young German King, Henry IV.

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