Later he saved some of the civilian captives who were being ransomed by the Potawatomi. Knife Chief ransomed at least two captives before a sacrifice. Arab slaves, however, usually obtained as captives, were generally ransomed off amongst nomad tribes. These captives would either have been ransomed or sold off into Dublin's lucrative slave trade. Aside from those who converted, most were ransomed or enslaved. Others were ransomed, and some common soldiers appear to have been enslaved. In 1453, he was ransomed (for 8,000 French ecus) and freed from captivity. He was ransomed after ten months of captivity in Cairo. Abu'l Fath was tortured to death, while Abu Tahir ransomed himself and returned to Aleppo. All that could be ransomed were liberated by the summer of 1100. All of the hostages captured in the Lincheng Outrage were successfully ransomed, including Lucy Aldrich. The prisoners of later wars between Muslims and Christians were commonly ransomed or exchanged. Louis IX was ransomed for 400,000 dinars. Burns was eventually ransomed from slavery, with his freedom purchased by Boston sympathizers. The minister John Williams was among those captured and ransomed.