Patron, begun 1848: Muhammad 'Ali (Muhammad Ali Pasha al-Mas'ud ibn Agha) 1769-1849, Wāli of Egypt, Sudan, Sham, Hejaz, Morea, Thasos, Crete (r.1805-1848). Patron, completed 1857: Sa‘id (Mohamed Sa'id Pasha) 1822-1863, 4th son of Muhammad 'Ali, Wāli of Egypt & Sudan (r.1854-1863). Architect: Yusuf Bushnak, an otherwise unknown Greek architect from Istanbul, who is thought to have modelled it on the Mosque of Sultan Ahmed (Blue Mosque) in Istanbul. Islamic Monument #503