I didn't find my name in the Dutch list , though it is an original Dutch name. Somehow, it appears on the German list, and the explanation is about right, so here we go

My first name is in full LUTGARDE
LUTGARD f German
Variant of LUITGARD

LUITGARD f German
Derived from the Germanic elements liut "people" and gard "enclosure".

My parents always told me that my name meant "gardian of the people"