Richelieu

A river of southern Quebec, Canada, flowing about 121 km (75 mi) north from Lake Champlain to the St. Lawrence River. Discovered by Samuel de Champlain in 1609, it was an important waterway for early explorers.

French prelate and politician. As chief minister of Louis XIII he worked to strengthen the authority of the monarchy and directed France during the Thirty Years' War (1618-1648).