Rhuddlan Castle (Welsh: Castell Rhuddlan; Welsh pronunciation: [kastɛɬ ˈr̥ɨðlan]) is a castle located in Rhuddlan, Denbighshire, Wales. It was erected by Edward I in 1277, following the First Welsh War. Much of the work was overseen by master mason James of Saint George. Rhuddlan, which was not completed until 1282, was built concurrently with Flint Castle, at a time when King Edward I of England was consolidating his conquest of Wales. It was temporarily his residence, and his daughter, Elizabeth, is presumed to have been born there.