Pope Gelasius II excommunicates Henry V, Holy Roman Emperor. Emperor after the Emperor rejected Gelasius's election and set up an antipope, Gregory VIII, escalating the Investiture Controversy, regarding the right to appoint church officials.
Pope Gelasius was forced into exile and died at Cluny in January 1119. He was succeeded by Calixtus II who settled the investiture issue at the Concordat of Worms in 1122, which settled the investiture issue.
