sentences:  Hugh and Bohemond of Antioch mobilized their armies, but their forces were prevented from joining those of the Mongols by Baibars' successor, the new Egyptian Sultan Qalawun.He advanced north from Egypt in March 1281, positioned his own army between the Franks and Mongols, and then further divided the potential allies by renewing a truce with the Barons of Acre on , extending it for another ten years and ten months (a truce he would later breach).He also renewed a second 10-year truce with Bohemond VII of Tripoli on , and affirmed pilgrim access to Jerusalem.