Struggle against Anacletus Anacletus had control of Rome, so Innocent II took ship for
Pisa, and thence sailed by way of
Genoa to France, where the influence of
Bernard of Clairvaux readily secured his cordial recognition by the clergy and the court. In October 1130, he was duly acknowledged by King
Lothair III of Germany and his bishops at the synod of
Würzburg. In January 1131, he also had a favourable interview with
Henry I of England at Chartres. In August 1132, Lothar III undertook an expedition to Italy to set aside Anacletus as
antipope and be crowned by Innocent. Anacletus and his supporters being in secure control of
St. Peter's Basilica, the coronation ultimately took place in the
Lateran Basilica (4 June 1133), but otherwise the expedition proved abortive. Innocent II invested Lothair as emperor and the territories belonging to
Matilda of Tuscany in return for an annuity of 100 pounds of silver paid to the pope. After Lothar's hasty departure from Rome, Innocent fled to Pisa. In May 1135, Innocent convened the
council of Pisa, which was attended by over one hundred clerics and abbots. Innocent II had the council declare Anacletus and his supporters
excommunicated. The second expedition by Lothar III in 1136 was no more decisive in its results, and the protracted struggle between the rival pontiffs was terminated only by the death of Anacletus II on 25 January 1138.
Second Lateran Council At the Second Lateran council of April 1139, King
Roger II of Sicily, Innocent II's most uncompromising foe, was
excommunicated. Can. 29 of the Council banned the use of crossbows, as well as slings and bows, against Christians.
Treaty of Mignano On 22 July 1139, at
Galluccio, Roger II's son
Roger III of Apulia ambushed the papal troops with a thousand knights and captured Innocent. On 25 July 1139, Innocent was forced to acknowledge the kingship and possessions of Roger with the
Treaty of Mignano.
Involvement with Outremer In his papal bull
Omne Datum Optimum from March 1139, Innocent II had declared that the
Knights Templar—a religious and military organization then twenty-one years old—should in the future be answerable only to the papacy. That same year he sent
Alberic of Ostia to examine the conduct of the
Latin Patriarch of Antioch establish ties with the
Armenian Catholicos. The consequent Latin synod in Antioch, attended also by the Armenian Catholicos
Gregory III, marked the symbolic beginning of Armenian-Latin high-level clerical contacts and according to Armenian sources Innocent sent Gregory a letter of greeting with a staff and
pallium. On 25 September 1141, he wrote Catholicos Gregory III another long letter in which he asked him to cooperate with the Church of Rome and end the schism, which was achieved at the end of the century.
Death Innocent II died on 24 September 1143 and was succeeded by
Pope Celestine II. ==Legacy==