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Dictionary of Medieval Names
from European Sources

Bonabella f. Latin bona 'good, kind, right, pleasant; valid, useful, healthy' + Latin bella 'beautiful, charming, pleasant'.

Italy
Latin
1285 Bonabelle (gen) Perugia1285 p. 160
Cite as: S.L. Uckelman. "Bonabella". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2018, no. 1. http://dmnes.org/2018/1/name/Bonabella.