The Theme of Macedonia (Greek: θÎμα Μακεδονίας théma MakedonÃas) was a military-civilian province (theme) of the Byzantine Empire established between the late 8th century and the early 9th century. The theme of Macedonia had limited geographical relation to the previous province of Macedonia and mainly lay in the southwestern parts of what previously was the adjacent Diocese of Thrace. Its capital was Adrianople.