Coats of Arms

The coat of arms of the ancient du Plessis family is the simple red reversed triple chevron. When the Cardinal achieved high office this simple blason was surrounded with the emblems of Cardinal (the hat & frogging), the Duke (coronet and ermine), Superintendant of the Navy (anchor), Order of the Holy Sprit (dove on cross of malta) . The simple yellow and red shield is the current coat of arms of the Town of Richelieu. But whose are the arms on the crossing ceiling in the church? The Bishop of? Pope x? I'll try to find out.
The Cardinals Arms are carved above the Grand Rue door to the original Court house, now the Mairie. The original carriage door has been infilled with a window at a later date.