DescriptionByzantium's Balkan frontier in the 10-12th century.png
English: Byzantium's Balkan frontier, with approximate location of forts (Brvenik, Galič, Jeleč, Lipjan, Ras, Zvečan) and other settlements, from the second half of the 10th until first half of the 12th century with then historical toponyms (Zygos mountain range, so-called Bulgarian forest, and Dendra).
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Own work based on: Paul Stephenson, Byzantium's Balkan Frontier: A Political Study of the Northern Balkans, 900–1204 (2004) Paul Stephenson, "Balkan borderlands (1018–1204)" (2008)
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