Ka kammala wannan magana: A tsakiyar ƙarni na biyar, sa'ad da Daular Roma ta Yamma ta soma rushewa, ƙasar Thrace ta daina zama ƙarƙashin ikon Roma kuma ta zama ƙarƙashin sarakunan ƙabilu na Jamus. Tare da faɗuwar Daular Roma ta Yamma, Thracia ta zama yankin da ake yaƙi a mafi yawan shekaru 1,000 masu zuwa. Yankin gabas da ya tsira na Daular Roman a cikin Balkans, wanda daga baya aka sani da Daular Byzantine, ya ci gaba da iko da Thrace har zuwa ƙarni na 7 lokacin da aka haɗa rabin arewacin yankin gaba ɗaya cikin Daular Bulgarian ta farko kuma an sake tsara sauran a cikin taken Thracian.
Daular ta sake dawo da yankunan da aka rasa a ƙarshen ƙarni na 10 har sai Bulgaria ta sake mallakar arewacin rabin a ƙarshen ƙarni na 12. A cikin karni na 13 da farkon rabin karni na 14, yankin yana canzawa a hannun Bulgaria da Daular Byzantine (ban da Constantinople). A cikin 1265 yankin ya sha wahala daga mamayar Mongol daga Golden Horde, wanda Nogai Khan ya jagoranta, kuma tsakanin 1305 da 1307 Kamfanin Catalan ya mamaye shi.