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.