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Dictionary of Medieval Names
from European Sources

Bertulf m. Old High German beraht, Old Saxon berht 'bright' from Proto-Germanic *berhtaz + Old High German wolf, Gothic wulf 'wolf'.

The name of two German saints from the 7th and 8th C.

Germany
Latin
1135 Bertolfus (nom) quix-vol1 95; 1137 Bertulfi (gen) ibid. 102; 1173 Bertholphus (nom) ibid. 99; 1192 Bertolphus (nom) ibid. 40
Switzerland
Latin
1157 Bertolfus (nom) CartHaut 7; 1165 Bertulfo (abl) ibid. 16
Cite as: S.L. Uckelman. "Bertulf". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 3. http://dmnes.org/2015/3/name/Bertulf.