Pétronille-Elisabeth married Cte Guy I DE BRIENNE comte de Bar-Sur-Seine, son of Milon II DE BRIENNE comte de Bar-Sur-Seine and Mahaut (Mathilde) DE NOYERS. (Cte Guy I DE BRIENNE comte de Bar-Sur-Seine was born about 1110 in Bar-sur-Seine, Aube, Champagne, France and died after 1159.)