Cairo Citadel

The Citadel was begun by the Muslim Ayyubid ruler Salah al-Din (Saladin) between 1176 and 1183 CE in order to protect Cairo from potential Crusader attacks and to provide a secure center of government for his new regime (only a few years after he had dismantled the Fatimid Caliphate). This also emulated a feature of many Syrian cities, such as Damascus and Aleppo, which had walled citadels that acted as the seat of power and which Saladin was familiar with.

Construction of the Ayyubid Citadel appears to have continued under Sultan al-'Adil (r. 1200–1218), Saladin's brother and later successor, and was probably finished under the reign of al-Kamil (1218–1238). Al-'Adil had already supervised some of the construction under Saladin, while al-Kamil in turn probably worked on the Citadel during al-'Adil's reign when the latter gave him the viceroyship of Egypt in 1200 (a prelude to becoming sultan later). The rounded towers in the outer walls of the Northern Enclosure date from Saladin's initial construction while the large rectangular towers date to al-Adil's reign.

Under the early Bahri Mamluks, the Citadel was continuously developed and the Southern Enclosure in particular was expanded and became the site of important monumental structures. al-Zahir Baybars, al-Mansur Qalawun, al-Ashraf Khalil and al-Nasir Muhammad each built or rebuilt the audience hall (throne hall), the main mosque, the palaces, or other structures. Unlike the earlier Ayyubid buildings, the Mamluk buildings were increasingly designed to be visible from afar and to dominate the city's skyline. Many of these structures have not survived, with few exceptions.