Sources:
i. Generalkarte von Mitteleuropa 1:200.000 der Franzisco-Josephinischen Landesaufnahme. Österreich-Ungarn. ab 1887-1914.
ii. Vasmer, M. (1970). Die Slaven in Griechenland. Zentralantiquariat der Deutschen Demokratischen Republik. (Original work published in 1941)

Based on:
Vasmer, M. (1970). Die Slaven in Griechenland. Zentralantiquariat der Deutschen Demokratischen Republik. (Original work published in 1941)

Sources:
i. Οικονόμου, Κώστας Ευ. (2002). Τα οικωνύμια του νομού Ιωαννίνων. Γλωσσολογική εξέταση. Νομαρχιακή Αυτοδιοίκηση Ιωαννίνων.
(https://olympias.lib.uoi.gr/jspui/bitstream/123456789/25635/1/949.53%20%CE%9F%CE%99%CE%9A.pdf)
ii. Generalkarte von Mitteleuropa 1:200.000 der Franzisco-Josephinischen Landesaufnahme. Österreich-Ungarn. ab 1887-1914.
(https://commons.wikimedia.org/wiki/File:Janina_-_39-40.jpg and https://commons.wikimedia.org/wiki/File:Korfu_-_38-40.jpg)

Hey! The villages with name:mk that differ from their current names are based on the former names (before being renamed), which are still used in the Macedonian language, transliterated into their Slavic toponym forms. Unchanged place names are simply transcribed into Macedonian Cyrillic.

You can check out the place name changes here: https://pandektis.ekt.gr/pandektis/handle/10442/4968

And the village names here on the Macedonian Wikipedia:
Zagori: https://mk.wikipedia.org/wiki/Предлошка:Загори
Konitsa:
https://mk.wikipedia.org/wiki/Предлошка:Коница