Wales Beaumaris, Caernarfon and Conwy. His son, the future Edward II, was born at Edward's new castle at Caernarfon in 1284. He became the first English Prince of Wales in 1301, which at the time provided an income from northwest Wales known as the Principality of Wales. The title is granted by the monarch to the heir apparent as a personal honour or dignity, and is not heritable, merging with the Crown on accession to the throne. After the failed revolt in 1294–95 of Madog ap Llywelyn – who styled himself Prince of Wales in the Penmachno Document – and the
George III and the Prince of Wales Reviewing Troops George III and the Prince of Wales Reviewing Troops George III and the Prince of Wales Reviewing Troops was an oil on canvas painting by William Beechey, showing George III and his sons George, Prince of Wales and Frederick, Duke of York at an imagined review in Hyde Park. George rides Adonis (his favourite horse), whilst the Prince of Wales wears the uniform of the 10th Light Dragoons, of which he was colonel. Beside Frederick is David Dundas (Quartermaster General, who had commanded manoeuvres at Windsor and Weymouth before the king) and the painting also shows Philip Goldsworthy (one of