The castle’s guardroom dates back to 1240 and displays the coats of arms of all the couples who have owned the castle from its founding to the present day.
Above the fireplace hangs the Chastellux family coat of arms, accompanied by their motto, “Montréal à sire de Chastellux.”
The shield:
Azure, a gold band flanked by 7 billets, 4 in the chief and 3 in the base
Support :
Two crouching lions
In the background:
2 marshal’s batons. The motto “A Ton Plaisir” is inscribed on both handlebars.
Crest:
The head of Queen Brunehaut, Queen of Austrasia (531–613), flanked by two falcons.
The number of billets varied until the early 15th century; there were as many as twenty-five (Guy de Beauvoir). It was Marshal de Chastellux who set the number at 7; he added the marshals’ staffs in 1418. Following his appointment by King Charles VI, the shield has remained unchanged since that time.
King Henry IV granted the family the right to place the ducal crown above their coat of arms.
In the 19th century, César-Laurent, Count of Chastellux, added the mantle of peerage of France to his coat of arms, a privilege granted by virtue of his office.
In the mid-19th century, Henri-Louis de Chastellux was granted the title of Duke of Rauzan-Duras and subsequently quartered his coat of arms.