For several years, I’ve been searching for The Richbourg “Coat of Arms”. Not being sure if I really remembered seeing one or just imagined seeing one during earlier research forays. The links below represent what I have found. But, please note that they have not been authenticated any further than the websites they appear on… This means I have not vetted these with the Coat of Arms police.
(Blason originally comes from a heraldic term in French heraldry and means either the codified description of a coat of arms or the coat of arms itself.)
Search for the term ‘blason richebourg’ returned the following results…
http://homepages.rootsweb.ancestry.com/~cousin/html/p429.htm (scroll down to the Pierre I, comte de St. Pol entry)