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Dictionary of Medieval Names
from European Sources

Walthard m. Old Saxon wald, Old High German walt 'power, authority' + Old Saxon hard, Old High German hart 'strong, hard'.

Germany
Latin
822x875 Walthardo (abl) TradCorb §139, Walthardus (nom) ibid. §139
Cite as: S.L. Uckelman. "Walthard". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 3. http://dmnes.org/2016/3/name/Walthard.