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Dictionary of Medieval Names
from European Sources
☙

Liberto m. Latin libertus 'freedman, ex-slave'.

Some examples from Germany and the Low Countries may in fact belong with Liutbert.

France
Latin
● 1378 Liberto (dat) hanquetvol1 412
Cite as: S.L. Uckelman. "Liberto". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2018, no. 1. http://dmnes.org/2018/1/name/Liberto.