The House of Laval is a family of barons, later counts, coming from the town of Laval, located in Northwestern France, part of the province of Maine before the French Revolution. The Laval were one of the most powerful families of Maine during the Middle Ages and also had a presence in Brittany, where their prestige was similar to the one of the Rohan. The House of Laval played a significant role in Breton history and during the Hundred Years War and the French Wars of Religion. They also favored the French Renaissance in Northwestern France, building several châteaux. The last male heir died during the 17th century, and his possessions went to the House of La Trémoille.