Spring –Shams al-Mulk Isma'il, Seljuk ruler of Damascus, sends envoys to Imad al-Din Zengi, Seljuk ruler of Mosul, to seek his protection in exchange of Damascus. Zengi crosses the Euphrates, receiving the surrender of the city of Hama. He besieges Damascus but, due to a shortage of supplies, is forced to abandon the siege. Zengi extricates himself from Damascus, his Seljuk forces capture the fortresses at Ma'arrat and Atharib.
Queen Melisende of Jerusalem reconciles with her husband Fulk V, after a period of estrangement occasioned by her growing power, and rumors that she has had an affair with Hugh II (du Puiset), former count of Jaffa.
Summer – King Roger II lands with a Sicilian expeditionary force in Salerno. He splits his army, and conquers the cities of Aversa and Alife. Roger besieges Naples – but despite poor health conditions within the city, he is not able to take it, and returns again to Messina.
Lothair III receives a Byzantine embassy at his court, on behalf of Emperor John II Komnenos. It offers large financial subsidies for Lothair to start a campaign against Roger II. The negotiations will last for some months.
December 26– Stephen of Blois is crowned at Westminster Abbey in London by Archbishop William de Corbeil. Matilda (pregnant with child) and her husband Geoffrey V ("the Fair") leave for their own safety to Normandy, where she plans how to overthrow Stephen and claim the English throne for her own.
McGrank, Lawrence (1981). "Norman crusaders in the Catalan reconquest: Robert Burdet and the principality of Tarragona, 1129-55". Journal of Medieval History. 7 (1): 67–82. doi:10.1016/0304-4181(81)90036-1.
Picard, Christophe (1997). La mer et les musulmans d'occident au Moyen Âge, VIIIe-XIIIe siècle (in French). Presses Universitaires de France. ISBN978-2130488101.