Dictionary of Medieval Names
from European Sources

Magnus m. Latin magnus 'large, great, powerful'.

The name of a 2nd C saint, a 3rd C saint, a 6th C saint, a 7th C French saint, a 7th or 8th C German saint, an three 11th C kings of Norway, an 11th C king of Denmark, two 12th C kings of Norway, two 12th C kings of Sweden, a 13th C king of Norway, a 13th C king of Sweden, a 14th C king of Norway and Sweden, and a 16th C king of Livonia.

Austria
Latin
c1070 Magnvs (nom) UrkStyria 74
Estonia
Middle Low German
1419 Maugnus BbRT p. 348; 1592 Magnus Tiik1977 p. 287
Finland
Old Swedish
1405 Magnus (nom) SDHK no. 16441
Early Modern Swedish
1548 Mongs (gen) Audén1980 p. 168
Germany
Latin
c1070 Magnus (nom) UrkStyria 72; 1259 Magnus (nom) CDL-1.1.1 XXXI
Iceland
Middle Icelandic
1500 magnus (nom) DipIs-7 489
Italy
Latin
1285 Mainecti (gen) Perugia1285 p. 154
Sweden
Latin
1337 magnus (nom) SDHK 4361; 1350 Magni (gen) ibid. no. 6055, Magno (dat) ibid. no. 6060, Magnus (nom) ibid. no. 6005; 1351 Magnus (nom) ibid. no. 6012; 1356 Magno (abl) ibid. no. 7002, Magnus (gen) ibid. no. 7001; 1368 Magnus (nom) ibid. 9272, magno (abl) ibid. 9273; 1411 Magni (gen) ibid. no. 17654
Old Swedish
1358 Magnus (gen) SDHK no. 7337; 1383 Magnos SRA-vol2 no. 1936, Magnossa (gen) ibid. no. 1936, Magnus ibid. no. 1902, Magnussa (gen) ibid. no. 1910; 1403 Magnus (nom) SDHK no. 16006; 1406 Magnus (nom) ibid. no. 16646, Månns (nom) ibid. no. 16646; 1409 Magnus (gen) ibid. no. 17268, Magnussa (gen) ibid. no. 17268; 1410 Magnus (nom) ibid. no. 17485; 1411 Maghnusse (dat) ibid. no. 17735, Magnus (gen) ibid. no. 17737, Magnusa (gen) ibid. no. 17663, Magnusse (dat) ibid. no. 17735; 1413 Magnus (nom) ibid. no. 18131; 1415 Magnus (gen) ibid. no. 18466; 1416 Magnus (nom) ibid. no. 18817, Magnussa (gen) ibid. no. 18817, Magnusse (dat) ibid. no. 18817; 1418 Magnus (nom) ibid. no. 19090; 1419 Magnus (nom) ibid. no. 19273
Early Modern Swedish
1543 Mågs (gen) Audén1980 p. 164, Mågz (nom) ibid. p. 164
Cite as: R. Le Get, S.L. Uckelman. "Magnus". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2018, no. 1. http://dmnes.org/2018/1/name/Magnus.