 In ancient geographical sources, Moesia was bounded to the south by the Haemus (Balkans) and Scardus (Šar) mountains, to the west by the Drinus (Drina) river, on the north by the Donaris (Danube) and on the east by the Euxine (Black Sea).The region was inhabited chiefly by Thracians, Dacians (Thraco-Dacians), Illyrian and Thraco-Illyrian peoples.The name of the region comes from Moesi, Thraco-Dacian peoples who lived there before the Roman conquest.