Edirne (, ), historically known as Adrianople (; ; founded by the Roman emperor Hadrian on the site of a previous Thracian settlement named "Uskudama") is a city in Turkey, in the northwestern province of Edirne and East Thrace, close to Turkey's borders with Greece and Bulgaria (3.24 miles or 5.22 kilometers from the Greek border at the closest point). Edirne was the capital city of the Ottoman Empire from 1369 to 1453, before Constantinople became the empire's capital. The estimated population in 2019 was 185,408.