The name of a 7th C king of Dal Riata, an 8th C high king of Ireland, an 8th C Irish saint, a 10th C high king of Ireland, and two 11th C kings of Scotland.
 
  
  
  In Ireland, the name was sometimes anglicized or Latinized Dionysius (cf. Dennis) or Donantus (cf. Donato).
  
  
- Scotland
 
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- Latin
 
- ● 1040x1057 Duncani (gen) ESC V;
 1070x1093 Duncano (abl) ibid. X;
 1093x1097 Conchat (gen) ibid. XIII,
 Duncano (abl) ibid. XIII;
 1094 Dunecani (gen) ibid. XII,
 Dunecanus (nom) ibid. XII;
 1095 Doncani (gen) ibid. XV,
 Duncani (gen) ibid. XVII;
 a1177 Dunecanus (nom) CartNBer 3;
 a1200 Donecanus (nom) ibid. 1;
 1376 Duncani (gen) morton-vol1 16;
 1384 Duncani (gen) CartLevenax p. 7,
 Duncano (abl) ibid. p. 7,
 Duncanus (nom) ibid. p. 8;
 1386 Duncano (dat) ibid. p. 8;
 1387 Duncano (dat) ibid. p. 9,
 Duncanus (nom) ibid. p. 10;
 1392 Duncani (gen) ibid. p. 11,
 Duncano (dat) ibid. p. 10,
 Duncanus (nom) ibid. p. 11;
 1425 Duncani (gen) RMSRS-2 22
 
 
Cite as: J. Uckelman, S.L. Uckelman. "Duncan". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2023, no. 1. http://dmnes.org/2023/1/name/Duncan.