What is "kutmichevitsa"

Kutmichevitsa was an administrative region of the Bulgarian Empire as well as Byzantine Empire during much of the Middle Ages, corresponding roughly with the northwestern part of the region of Macedonia and the southern part of Albania, broadly taken to be the area included in the triangle Saloniki- Skopje- Vlora. It had an important impact on the formation, endorsement and development of the Old Church Slavonic and culture. The Debar–Velich diocese of the Bulgarian Orthodox Church was created in Kutmichevitsa whose first bishop between 886 and 893 was Clement of Ohrid, appointed by Knyaz Boris I.