The Capetian House of Anjou, also known as the House of Anjou-Sicily and House of Anjou-Naples, was a royal house and cadet branch of the direct House of Capet. It is one of three separate royal houses referred to as Angevin, meaning "from Anjou." Founded by Charles I of Sicily, a son of Louis VIII of France, the Capetian king first ruled the Kingdom of Sicily during the 13th century. Later the War of the Sicilian Vespers forced him out of the island of Sicily, leaving him with just the southern half of the Italian Peninsula — the Kingdom of Naples. The house and its various branches would go on to influence much of the history of Southern and Central Europe during the Middle Ages, until becoming defunct in 1435.