Edirne ) is a city in Eastern Thrace, the westernmost part of Turkey, close to the borders with Greece and Bulgaria. Edirne served as the capital city of the Ottoman Empire from 1365 to 1453, before Constantinople (Istanbul) became the empire's new capital. At present, Edirne is the capital of the Edirne Province in Turkish Thrace. The city's estimated population in 2010 was 138,793, up from 119,298 in 2000. It has consulates of Bulgaria, Germany (Honorary), Greece, Romania (Honorary) and Slovakia (Honorary). Its sister cities are Haskovo and Yambol in Bulgaria and Alexandroupolis in Greece.