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Dictionary of Medieval Names
from European Sources

Constant m. Latin constans 'constant, unchanging, steadfast; steady, stable'.

The name of a 4th C Roman emperor and an 8th C Irish saint.

England
English
1593 Constant StAnthonlin p. 36
France
Latin
957x91 Constancii (gen) St-Bernard-Romans no. 109; 1054 Constantius (nom) StVdM-II 693; 1067x1074 Constancius (nom) CartNDSaintes XIII; 1067x1086 Constancius (nom) ibid. XIV; 1107 Constantio (abl) CartStPC XVII; 1135 Constantius (nom) clairvaux-12thc 7; 1138x62 Constantii (gen) ibid. 59, Constantius (nom) ibid. 87; 1143 Constancius (nom) ibid. 10; 1147 Constantii (gen) ibid. 19, Constantio (abl) ibid. 15, Constantius (nom) ibid. 19; a1163 Constantius (nom) ibid. 97; 1163 Constantii (gen) ibid. 99; 1163–64 Constancius (nom) ibid. 115, Constantius (nom) ibid. 115; 1164 Constantius (nom) ibid. 121; 1180 Constancio (abl) RotScaNor p. 12
Middle French
1588 Constant raymond1588 p. 570
Cite as: S.L. Uckelman. "Constant". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 2. http://dmnes.org/2015/2/name/Constant.