Could Valmy possibly have something to do with the Battle of Valmy?
http://www.standin.se/fifteen14a.htm
http://www.nationalgallery.org.uk/cgi-bin/WebObjects.dll/CollectionPublisher.woa/wa/work?workNumber=NG2964
I know that many have claimed that there were girls named
Alma after the Battle of
Alma in the Crimean War. It seems that the Battle of Valmy would be something parents who were anti-monarchist might want to commemorate in the name of a daughter. The name was used in
France itself in the early 20th century, thought it was rare. I can't find any statistics online on just when in the 19th century or before the first French Valmy was born, however. Perhaps Lumia could help with that.