Ottoman Rulers were a series of rulers who governed the Ottoman Empire from 1299 to 1922. The three main titles of rulers were Beys, Sultans, and Deys. Beys were the lowest rank of rulers, followed by Sultans, and then Deys, who were the highest rank. Beys were appointed by the Sultan and had limited power, while Sultans were the absolute rulers of the Ottoman Empire and had full control over the government. Deys were the governors of the provinces and were appointed by the Sultan.