"[5] He also fulfilled a request of Pope Eugenius III for a Latin translation of Chrysostom's commentary on the Gospel of Matthew by sending an original Greek manuscript to Rome.
His predecessor, Ralph de Domfront, was not dead, but rather had been deposed by the a legatine council convened by Alberic of Ostia in November 1139 in Antioch.
After the Battle of Inab in 1149, the victorious Nureddin besieged the city of Antioch, which was stoutly defended by Aimery and the Princess Constance until a relief force led by Baldwin III of Jerusalem arrived and dispersed the Muslims.
When Aimery refused to finance this expedition, Raynald had the Patriarch seized, beaten until bloody, stripped naked, covered in honey, and left in the burning sun on top of the citadel to be attacked by insects.
In September 1158 Aimery performed the marriage of Theodora Comnena, Manuel's niece, and Baldwin III, because the elected Latin patriarch of Jerusalem, Amalric of Nesle, had yet to be consecrated.
Upon his release Bohemond visited Manuel and agreed to re-establish a Greek patriarch in Antioch, Athanasius I. Aimery protested this and imposed an interdict on the city.
By 1180 the Byzantine emperor was treating Aimery as the legitimate patriarch, and it is not unlikely that William of Tyre in some negotiations at Antioch and then Constantinople on behalf of Amalric of Jerusalem had reconciled them.
[15] He also invited the Jacobite to accompany him to the Third Lateran Council in 1179, and Michael obliged him with a treatise against Manichaeism that the Catholics could use against the Cathars, but declined to attend.
In late 1180, Bohemond left his wife Theodora, a niece of the recently deceased Emperor Manuel, and married a woman named Sibylla, "who had the reputation of practicing evil arts" according to William of Tyre.
Aimery, supported by the nobility of Antioch under their leader, Rainald II Masoir, lord of Margat, held out in al-Quṣayr under siege by Bohemond.
Aimery, at the head of the clergy, encouraged the citizens to resist the takeover and the Armenians were forced outside the walls while a commune was established that recognised the authority of Raymond IV of Tripoli until Bohemond's release.