Kathy Bates wrote:
For a series so accurately researched and set among the greatest nobles of the French Kingdom, the lack of interest in heraldry is a bit disappointing.
True.

We had already some similar discussion on the Czecho-Slovak forum.
In the case Joffrey de Peyrac, I always imagined that he used some heraldic symbols form the late counts of Toulouse - because eh was the last descendant of the family of Counts of Toulouse.
From the first book Angelique we do know about Joffreys family, that Joffrey was the youngest and last surviving descendant of the Counts de Toulouse.

http://www.euraldic.com/lasu/tx/txt_vbh ... louse.htmlhere some history of Toulouse, I find very well researched for the book series Angelique by Anne & Serge Golon:
viewtopic.php?f=13&t=339And here some informations about ancestors of Angelique
RIDOUET (DE) Seigneurs de Sancé, en Anjouhttp://www.euraldic.com/lasv/ns/ns_r_id.html