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Dictionary of Medieval Names
from European Sources

Amadeus m. 'loved by God', from Latin amo 'I love' + deus 'God'.

The name of a 12th C French saint.

France
Latin
1378 Amadeo (abl) hanquetvol1 1, Amedei (gen) ibid. 58, Amedeo (dat) ibid. 4, Amedeus (nom) ibid. 583
Italy
Latin
1179 Amedei (nom) CartHaut 25, Amedeus (nom) ibid. 25; 1327 Amadeo (abl) Friuli-14thC no. 450, Amadeus (nom) ibid. no. 450
Switzerland
Latin
1134 Amedeus (nom) CartHaut 1; 1137 Amadeus (nom) ibid. 2; 1154 Amadeus (nom) ibid. 5, Amedeo (abl) ibid. 5, Amedeus (nom) ibid. 5; 1155 Amedeo (abl) ibid. 6; 1157 Amedei (gen) ibid. 8, Amedevs (nom) ibid. 7; 1180 Amedei (gen) ibid. 26, Amedeus (nom) ibid. 26; 1186 Amedeum (nom) ibid. 27; 1220 Amedeus (nom) ibid. 36; 14thCx1478 Amedei (gen) Ob-SPVn (45), Amedeo (abl) ibid. (45), Amedeus (nom) ibid. (61)
Cite as: S.L. Uckelman. "Amadeus". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 3. http://dmnes.org/2015/3/name/Amadeus.