on what terms to offer. Pina suggests that some of the Moroccan commanders, upset at how the negotiations were being conducted on their behalf, withdrew from the truce. The renegades launched an assault on the Portuguese siege camp that Saturday that lasted seven hours. After that assault, Henry took account of the desperate conditions in the Portuguese camp. The army was starving, horses and beasts of burden were eaten. Thirst also began taking its deadly toll – the siege camp contained but a single small well, sufficient to slake only about one hundred men per day. With so many wounded and weakened, Henry did not have enough men to garrison the full length of the stockade. With the tacit permission of the Moroccan leaders, in an overnight operation on Saturday evening, Henry had his men reduce the circumference of the siege camp (and shift it slightly closer to the sea), allowing the Portuguese to defend themselves more effectively against renegade skirmishers. There were no more assaults on the Portuguese siege camp. The truce was observed from Sunday, October 13 onward. The treaty (October 16–17) The treaty was concluded on Wednesday, October 16, and signed the next day (October 17) by Prince Henry and Salah ibn Salah. The Moroccans allowed the Portuguese army to withdraw to their ships unmolested, but they were to leave behind all artillery, weapons, baggage, tents and horses. The Portuguese soldiers were to go empty-handed, taking only the clothes they were wearing. Most crucially, Henry promised to deliver Ceuta to the Marinids – to withdraw the Portuguese garrison and leave behind any and all Moroccan prisoners that were held there. He also committed Portugal to 100 years of peace with Morocco and other Muslim states in North Africa. To ensure the safe evacuation of Portuguese soldiers to their ships, hostages were swapped – the Tangier governor Salah ibn Salah handed over his son to the Portuguese in return for a group of four noble Portuguese hostages (identified as Pedro de Ataíde, João Gomes de Avelar, Aires da Cunha and Gomes da Cunha). As security for the final fulfillment of the treaty terms, Henry's brother, Ferdinand the Holy Prince, was to remain behind in Morocco, as a hostage of Salah ibn Salah, until Ceuta was delivered. Pina claims that Henry refused this condition, and offered himself in his brother's place, but that the others in his council would