Rubuta ci gaba don wannan sakin layi - A tsakiyar karni na 5, lokacin da Daular Roman ta Yamma ta fara rushewa, Thracia ta faɗi daga ikon Rome kuma ta shiga hannun sarakunan kabilun Jamusawa. 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 Bulgaria ta Farko kuma an sake tsara sauran a cikin taken Thracian. Da Daula ta sake samun
yankunan da aka rasa a ƙarshen karni na 10 har sai Bulgarians sun sake samun iko da arewacin arewa a ƙarshen karni 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.