The House of Anjou was a royal dynasty that originated in the region of Anjou in France. It became prominent in the 12th century and was known for producing several notable monarchs, including King Louis VIII and King Louis IX of France. The house played a significant role in European politics, particularly through marriages and territorial claims. Members of the House of Anjou also ruled over various territories, including Naples and Sicily. The dynasty's influence extended beyond France, impacting regions such as Hungary and Poland. The house eventually declined in power, but its legacy remains significant in European history.