Treaty of Devol Bohemond died, and Tancred remained regent of Antioch until his death during a typhoid epidemic in 1112. After the death of Tancred, the principality passed to Roger of Salerno, who helped rebuild Antioch after an earthquake destroyed its foundations in 1114. With the defeat of Roger's crusading army and his death at the Battle of Ager Sanguinis in 1119 the role of regent was assumed by Baldwin II of Jerusalem, lasting until 1126, with the exception from 1123 to 1124 when he was briefly captured by the Artuqids and held captive alongside Joscelin of Courtenay. In 1126 Bohemond II arrived from Apulia in order to gain regency over Antioch. In February 1130 Bohemond was lured into an ambush by Leo I, Prince of Armenia who allied with the Danishmend Gazi Gümüshtigin, and was killed in the subsequent battle, his head was then embalmed, placed in a silver box, and sent as a gift to the Abbasid caliph in Baghdad. Antioch was again ruled by a regency, firstly being Baldwin II, after his daughter and Bohemond II's wife, Alice of Antioch attempted to block Baldwin from entering Antioch, but failed when Antiochene nobles such as Fulk of Jerusalem (Alice's brother-in-law) opened up the gates for representatives of Baldwin II. Alice was then expelled from Antioch. With the death of Balwin in 1131, Alice briefly took control of Antioch and allied herself with Pons of Tripoli and Joscelin II of Edessa in an attempt to prevent Fulk, King of Jerusalem from marching north in 1132; however, this attempt failed and Fulk and Pons fought a brief battle before peace was made and Alice was exiled again. In 1133 the king chose Raymond of Poitiers as a groom for Constance of Antioch, daughter of Bohemund II of Antioch and Alice, princess of Jerusalem. The marriage took place in 1136 between the 21-year-old Raymond and the 9-year-old Constance. Immediately after assuming control, Raymond was involved in conflicts with the Byzantine Emperor John II Comnenus who had come south to recover Cilicia from Leo of Armenia, and to reassert his rights over Antioch. The engagement lasted until 1137 when emperor John II arrived with an army before the walls of Antioch. Although the basileus did not enter the city, his banner was raised atop the citadel and Raymond was compelled to do homage. Raymond agreed with the emperor that if he was