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
Gwenllian of Wales of Wales" for the Crown, bestowing it upon his son, Edward, at a Parliament held in Lincoln in 1301 at the age of seventeen. The title is still given to the heir apparent to the British crown to this day. Nicki Bullinga wrote a historical novel, "Gwenllian. The Lost Princess", published by The Simon the Montfort Society (2017). Gwenllian of Wales Gwenllian of Wales or Gwenllian ferch Llywelyn (June 1282 – 7 June 1337) was the only child of Llywelyn ap Gruffudd, the last native Prince of Wales (). She is sometimes confused with Gwenllian ferch Gruffudd, who lived two