Bohemond II was the son of Prince Bohemond I of Taranto and Antioch and Constance of France. He was born in 1107 or 1108. In 1104, Bohemond I returned to Europe to seek military assistance against the Byzantine Empire and left his nephew Tancred in Syria to administer Antioch. Two charters show that Tancred styled himself prince of Antioch in 1108. In September of that year, Bohemond I was forced to sign the Treaty of Devol, which authorized the Byzantine Empire to annex Antioch upon his death.
bohemond ii was the son of prince bohemond i of taranto and antioch and constance of france he was born in 1107 or 1108 in 1104 bohemond i returned to europe to seek military assistance against the byzantine empire and left his nephew tancred in syria to administer antioch two charters show that tancred styled himself prince of antioch in 1108 in september of that year bohemond i was forced to sign the treaty of devol which authorized the byzantine empire to annex antioch upon his death