Prior to the formal surrender of Damietta, the two sides would maintain hostages, among them John of Brienne and Hermann of Salza for the Franks side and a son of al-Kamil for Egypt.
Before the formal handover of Damietta, both sides maintained captives, including John of Brienne and Hermann of Salza on behalf of the Franks, and a son of al-Kamil representing Egypt, highlighting the complexities of the conflict.