Dictionary of Medieval Names
from European Sources

Lanselm m. Old High German lant, Old Saxon land 'land' + Old High German, Old Saxon helm 'helmet'.

France
Latin
c1140 Lanselmus (nom) CartNDdOurscamp XCVIII
Cite as: S.L. Uckelman. "Lanselm". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Lanselm.