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Dictionary of Medieval Names
from European Sources

Birgir m. A derivative of Old Icelandic birgja 'to furnish, provide'.

The name of a 14th C king of Sweden.

1251 Byrgerus (nom) CDL-1.1.1 XXII; 1350 Birgers (gen) SDHK no. 6015, Birgheri (gen) ibid. no. 6000, Birghero (abl) ibid. no. 6023, Birgherum (acc) ibid. no. 6023, Birgirz (gen) ibid. no. 6002, Byrgeri (gen) ibid. no. 6020, Byrgero (abl) ibid. no. 6020, Byrgerus (nom) ibid. no. 6002, Byrghero (dat) ibid. no. 6030, Byrghys (gen) ibid. no. 6020; 1383 Birgerus (nom) SRA-vol2 no. 1901
Old Swedish
1383 Birger SRA-vol2 no. 1913, Birgher ibid. no. 1903
Cite as: S.L. Uckelman. "Birgir". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 3.