Antipope (1164-1168) died Rome, Italy. He was elected at Lucca, by the schismatic cardinals, in opposition to Pope Alexander III and as successor to the antipope Octavian. He was established at Viterbo and successfully prevented the legitimate pontiff from reaching Rome. Frederick Barbarossa supported his claims, installed him in Saint Peter's, and forced him to canonize Charlemagne. The Church never ratified this act, and the Third Lateran Council, 1179, annulled all his ordinances.