The Ottoman dynasty , made up of the members of the House of Osman ( Turkish : Osmanlı Hanedanı ) , ruled the Ottoman Empire from 1299 to 1922 , beginning with Osman I ( not counting his father , Ertuğrul ) , though the dynasty was not proclaimed until Orhan Bey declared himself sultan .
The Ottoman Dynasty ( or the Imperial House of Osman ) ruled the Ottoman Empire from 1299 to 1922 .