Koca Mi’mâr Sinân Âğâ was the chief Ottoman architect and civil engineer for sultans Suleiman the Magnificent, Selim II, and Murad III. He was responsible for the construction of more than three hundred major structures and other more modest projects, such as his Islamic primary schools (sibyan mektebs). His apprentices would later design the Sultan Ahmed Mosque in Istanbul, Stari Most in Mostar and help design the Taj Mahal in the Mughal Empire.
His masterpiece is the Selimiye Mosque in Edirne, although his most famous work is the Suleiman Mosque in Istanbul. He headed an extensive governmental department and trained many assistants who, in turn, distinguished themselves, including Sedefkar Mehmed Agha, architect of the Sultan Ahmed Mosque. He is considered the greatest architect of the classical period of Ottoman architecture, and has been compared to Michelangelo, his contemporary in the West. Michelangelo and his plans for St. Peter’s Basilica in Rome were well known in Istanbul, since Leonardo da Vinci and he had been invited, in 1502 and 1505 respectively, by the Sublime Porte to submit plans for a bridge spanning the Golden Horn.