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Dictionary of Medieval Names
from European Sources

Brunhard m. Old High German brūn 'brown', from Proto-Germanic brūnaz 'grey, brown' or Old High German brunnia 'breast plate' + Old Saxon hard, Old High German hart 'strong, hard'.

Germany
Latin
822x875 Brunhardo (abl) TradCorb §42
Cite as: S.L. Uckelman. "Brunhard". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 3. http://dmnes.org/2016/3/name/Brunhard.