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
Prince of Wales Great is not known to have used the title "Prince of Wales" as such, although his use, from around 1230, of the style "Prince of Aberffraw, Lord of Snowdon" was tantamount to a proclamation of authority over most of Wales, and he did use the title "Prince of North Wales" as did his predecessor Dafydd ab Owain Gwynedd. In 1240, the title was theoretically inherited by his son Dafydd ap Llywelyn, though he is not known to have used it. Instead he styled himself as "Prince of Wales" around 1244, the first Welsh prince to do so. In 1246, his