After the death of Honorius II, Petrus Leonis, under the name of
Anacletus II, was elected as Pope by a majority of the cardinals and with the support of the people of Rome on the same day as a minority elected
Innocent II. Before his death in 1130, Honorius II had modified the procedures for the election of his successor, designating just 8 cardinals as electors; in protest, the remaining cardinals elected their own pope against the results of the small body of electors. Thus, In 1135, Innocent II held a
council at Pisa, which confirmed his authority and condemned Anacletus. Anacletus's death in 1138 helped largely to solve the tension between rival factions. Nevertheless, Innocent decided to call the Tenth Ecumenical Council. The council assembled at the
Lateran Palace and nearly a thousand prelates attended. In his opening statement Innocent deposed those who had been ordained and instituted by Anacletus or any of his adherents. King
Roger II of Sicily was excommunicated for maintaining what was thought to be a schismatic attitude.
Arnold of Brescia, too, was removed from office and banished from Italy. The council also condemned the teachings of the Petrobrusians and the Henricians, the followers of
Peter of Bruys and
Henry of Lausanne. Finally, the council drew up measures for the amendment of ecclesiastical morals and discipline which the council fathers considered had grown lax. Many of the canons relating to these matters were mostly a restating of the decrees of the
Council of Reims and the
Council of Clermont. ==Select canons==