When Richard arrived in 1191, he and Philip took different sides in the succession dispute. Richard backed Guy, his vassal from Poitou, while Philip supported Conrad, a cousin of his late father Louis VII. After much ill-feeling and ill-health, Philip returned home in 1191, soon after the fall of Acre. Richard defeated Saladin at the Battle of Arsuf in 1191 and the Battle of Jaffa in 1192, recovering most of the coast, but could not recover Jerusalem or any of the inland territory of the kingdom. It has been suggested that this may have actually been a strategic decision by Richard rather than a failure as such, as he may have recognized that Jerusalem in particular was in fact a strategic liability as long as the crusaders were obligated to defend it, as it was isolated from the sea where Western reinforcements could arrive. Conrad was unanimously elected king in April 1192, but was murdered by the Hashshashin only days later. Eight days after that, the pregnant Isabella was married to Count Henry II of Champagne, nephew of Richard and Philip, but politically allied to Richard. As compensation, Richard sold Guy the island of Cyprus, which Richard had captured on the way to Acre, although Guy continued to claim the throne of Jerusalem until his death in 1194.