Is 'Artagnan' the name of a place?
Looks like it is... a place in France. Searching for it was
confusing, because most of the information on the 'net is all about
the three musketeers, or the guy one of the characters was based
on... but I found a map of Artagnan here, so it apparently exists.
:)
http://www.maplandia.com/france/midi-pyrenees/hautes-pyrenees/tarbes/artagnan/