In July, the crusaders, led by the aged Doge Enrico Dandolo, scaled the walls and took control of a major section of the city. In the ensuing fighting, the crusaders set the city on fire, ultimately leaving 20,000 people homeless. On 17 July Alexios III finally took action and led 17 divisions from the St. Romanus Gate, vastly outnumbering the crusaders. His courage failed, however, and the Byzantine army returned to the city without a fight. His courtiers demanded action, and Alexios III promised to fight. Instead, that night ( 17/18 July), Alexios III hid in the palace, and finally, with one of his daughters, Eirene, and as much treasure (1,000 pounds of gold) as he could collect, got into a boat and escaped to Debeltos in Thrace, leaving his wife and his other daughters behind. Isaac II, drawn from his prison and robed once more in the imperial purple, received his son, Alexios IV, in state.