Dulebes

According to medieval sources they lived in Western Volhynia, as well as southern parts of the Duchy of Bohemia and the Middle Danube between Lake Balaton and the Mur River (a tributary of the Drava) in the Principality of Hungary, probably implying migrations from a single region.

[5] The Primary Chronicle describes them as a tribe that formerly lived along the Bug river, "where the Volhynians now are found", in Volhynia what is today Western Ukraine.

[16] It appears that the Dulebi tribal union between 8th and 10th century formed or assimilated into the Volhynians, Drevlians, Polans, Dregoviches,[1] and possibly Buzhans, eventually to become part of the Kievan Rus'.

[17] According to the Chronica Boemorum chronicle by Cosmas of Prague (written in 1119–1125), a fortified settlement Doudleby, which exists even today, was part of Slavník's territory in the South Bohemian Region.

[4] In Pannonian Basin, in the charter by Emperor of the Carolingian Empire, Louis II (843–876), appears Tudleipin in a list of possessions of the Salzburg archbishop Adalwin; church Dudleipin built by Duke of Lower Pannonia, Pribina (846–861), is recorded in Conversio Bagoariorum et Carantanorum (c. 870); comitatus Dudleipa is mentioned in the "Letter of King Arnulf of 891" written during the time of Otto II (973–983), the county probably located in the territory of later Vas County; a locality called Dulieb in the Upper Drava region is mentioned in the Tyrolean act from 1060.

The range of Slavic ceramics of the Prague-Penkovka culture marked in black, and presumed location of three Early Medieval tribes of Dulebes in Central and Eastern Europe, per V.V. Sedov (1979).
The presumed location of Dulebes (green) in present-day Czech Republic during the 10th century, per V.V. Sedov (2002).