After the double
papal election of 1159, Imar became a supporter of the
Antipope Victor IV[10] and consecrated him to the episcopate in the
Abbey of Farfa on 4 October 1159, with the assistance of the Bishops Ubaldo of Ferentino and Riccardo of Melfi.[11] Due to this, he was
excommunicated and deposed from his titles by
Pope Alexander III, historically considered to be the legitimate pope. Imar then participated in the schismatic
Council of Pavia of February 1160, which anathematized Alexander. Soon after this, he submitted to Alexander and retired to the Abbey of Cluny, where he died in 1161.
Further reading
Johannes M. Brixius, Die Mitglieder des Kardinalskollegiums von 1130-1181, Berlin 1912, p. 44 and 91–92
Gaetano Moroni, Dizionario di erudizione storico-ecclesiastica da S. Pietro sino ai nostri giorni. Vol. XXXIII, Tipografia Emiliana, Venezia, 1840–1861, p. 266-267
^Brixius, p. 44, says that he died between 7 April 1161, when he is attested for the last time as a living person, and 1 June 1162, when Theobaldus was appointed his successor as Cardinal-Bishop of Frascati. The date 28 October, without a year, is given by the necrology of St. Martin des Champs, published by F. Duchesne, Histoire de tous les cardinaux françois, 1660, p. 99
^This is according to the
site of the see of FrascatiArchived 2012-02-21 at the
Wayback Machine and Brixius, p. 44. G. Moroni, p. 266 indicates that he was not Abbot of Santa Maria Nuova but Abbot General of the Order of Cluny; however, Moroni seems to be in error because Imar is not mentioned in
Catalogus abbatum Cluniacensium