English: The Mosque-Madrassa of Sultan Hassan is a massive mosque and madrassa located in the Old city of Cairo, it was built during the Mamluk Islamic era in Egypt. Its construction began 757 AH/1356 CE with work ending three years later "without even a single day of idleness".[1] At the time of construction the mosque was considered remarkable for its fantastic size and innovative architectural components. Commissioned by an-Nasir Hasan, a sultan of a short and relatively unimpressive profile, al-Maqrizi noted that within the mosque were several "wonders of construction".[1] The mosque was, for example, designed to include schools for all four of the Sunni schools of thought: Shafi'i, Maliki, Hanafi and Hanbali.
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