After meeting in Acre in June, the crusading kings Louis VII of France and Conrad III of Germany agreed with Melisende, Baldwin III and the major nobles of the kingdom to attack Damascus. Zengi's territory had been divided amongst his sons after his death, and Damascus no longer felt threatened, so an alliance had been made with Zengi's son Nur ad-Din, the emir of Aleppo. Perhaps remembering attacks launched on Jerusalem from Damascus in previous decades, Damascus seemed to be the best target for the crusade, rather than Aleppo or another city to the north which would have allowed for the recapture of Edessa. The subsequent Siege of Damascus was a complete failure; when the city seemed to be on the verge of collapse, the crusader army suddenly moved against another section of the walls, and were driven back. The crusaders retreated within three days. There were rumours of treachery and bribery, and Conrad III felt betrayed by the nobility of Jerusalem. Whatever the reason for the failure, the French and German armies returned home, and a few years later Damascus was firmly under Nur ad-Din's control.