According to Greek mythology, Orestes, son of king Agamemnon, built this city as Orestias, at the confluence of the Tonsus (Toundja) and theArdiscus (Arda) with the Hebrus (Maritza). The city was (re)founded eponymously by the Roman Emperor Hadrian on the site of a previousThracian settlement known as Uskadama, Uskudama or Uskodama. Hadrian developed it, adorned it with monuments, changed its name to Hadrianopolis, and made it the capital of the Roman province of Haemimont, or Thrace. Licinius was defeated there by Constantine in 323, and Valens killed by the Goths in 378. In 813 the city was seized by Khan Krum of Bulgaria who moved its inhabitants to the Bulgarian lands to the north of the Danube.