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
Named LNWR "Prince of Wales" Class locomotives Prince Edward, the future King Edward VIII, was invested as Prince of Wales at Caernarfon Castle. The investiture gave the LNWR an opportunity to name the first of the locomotives (and the class) in honour of the new Prince. A further nine engines were built during 1911 and given names associated with ships of the Royal Navy, in keeping with the patriotic sentiments of the time. The second batch of 30 locomotives of 1913 and early 1914 commemorated British, European and American poets and novelists of the 18th and 19th centuries. The final engine of the batch was named "G.P.