with the Estuary of Saint Lawrence. Toponymy The term "Grignon" is a family name of French origin. The toponym "Rivière à Grignon" was formalized on September 5, 1985, at the Place Names Bank of the Commission de toponymie du Québec. Notes and references Appendices Related articles Le Domaine-du-Roy Regional County Municipality Chambord, a municipality Lac Saint-Jean, a body of water Saguenay River, a stream External links Rivers of Saguenay–Lac-Saint-Jean Le Domaine-du-Roy Regional County Municipality