Maybe you could find something useful on this site?
http://www.cosman.nl/maps/list_en.php?cn=fr I was not a quilter when I visited France way back in 1969....
I wonder if you contacted locals if they could give you an insight. I googled patchwork in provence, france to find these links.
http://valencroix.over-blog.com/categorie-10769734.html