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Dictionary of Medieval Names
from European Sources

Bjorn m. Old Icelandic bjǫrn 'bear' from Proto-Germanic *bernuz.

The name of several early legendary kings of Sweden, a 10th C king of Norway, and a 10th C king of Sweden.

Sweden
Middle Norwegian
1383 Biærne (unc) SRA-vol2 no. 1915
Old Swedish
1383 Biorns (gen) SRA-vol2 no. 1922, Biörn ibid. no. 1911, Byorn ibid. no. 1900, Byorns (gen) ibid. no. 1918
Early Modern Swedish
1543 Biörs (gen) Audén1980 p. 163
Cite as: R. Le Get, S.L. Uckelman. "Bjorn". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 3. http://dmnes.org/2015/3/name/Bjorn.