Султан Сулейман I, also known as Süleyman the Magnificent, was the tenth and longest-reigning sultan of the Ottoman Empire, ruling from 1520 to 1566. He is renowned for his military conquests, which expanded the empire significantly, and for his legal reforms that modernized the Ottoman legal system. Under his leadership, the Ottoman Empire reached its zenith in terms of territorial expansion and cultural achievements. Sülеyman was also a patron of the arts, leading to a flourishing of architecture, literature, and the decorative arts, with notable structures like the Süleymaniye Mosque in Istanbul.