French military fort in seigniory granted to Pierre de Sorel (Saurel), Captain in Carignan regiment 1642, constructed at mouth of Sorel river, guarding approach from the south. Governor Montmagny named the river Richelieu at first and built the first fort in 1642. Pierre de Sorel built the second fort in 1665. The river was sometimes called Sorel and Chambly because of the forts erected on its banks. The first Anglican church in what was called Canada was established at Sorel in 1785 although services had been conducted from July 4th, 1784. Map No. 94 Del'Isle 1700.