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Dictionary of Medieval Names
from European Sources

Bonfilius m. Latin bonus 'good' + Latin filius 'son'.

The name of a 12th C Italian saint.

France
French
1368 Bon Fillot beauchet-vol1 p. 13
Preview. DO NOT cite as: S.L. Uckelman. "Bonfilius". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2015, no. 1. http://dmnes.org/2015/1/name/Bonfilius.