The Valois (UK: /ˈvælwɑː/ VAL-wah, also US: /vælˈwɑː, vɑːlˈwɑː/ va(h)l-WAH, French: [valwa]; originally Pagus Valensis) was a region in the valley of the Oise river in Picardy in the north of France. It was a fief in West Francia and subsequently the Kingdom of France until its counts furnished a line of kings, the House of Valois, to succeed the House of Capet in 1328. It was, along with the counties of Beauvais, the Vexin, Vermandois, and Laon, part of the "Oise line" of fiefdoms which were held often by one individual or an individual family as a string of defences against Viking assault on Paris.