Dictionary of Medieval Names
from European Sources

Fritheburg f. Old High German fridu, Old Saxon frithu 'peace' + Old High German burg 'castle, city, stronghold'.

Germany
Latin
822x875 Frithuburg (abl) TradCorb §134; 963x1023 Frithuburgh (nom) ibid. §226
Cite as: S.L. Uckelman. "Fritheburg". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Fritheburg.