English: A mosque, madrasa and dome of Sultan Al-Nasir Hassan, Madrasa of Sultan Hassan, or Sultan Hassan Mosque is one of the famous ancient mosques in Cairo. Described as the jewel of Islamic architecture in the East, it is considered the most harmonious monument of Islamic Cairo, and it represents the stage of maturity of Mamluk architecture. It was established by Sultan Al-Nasir Hassan Bin Al-Nasser Muhammad Bin Qalawun during the period from 757 AH / 1356 AD to 764 AH / 1363 AD during the period of the rule of the maritime Mamluks of Egypt.