Prince of Wales regard as having been the last native Prince. On 16 September 1400, he was proclaimed Prince of Wales by his supporters, and held parliaments at Harlech Castle and elsewhere during his revolt, which encompassed all of Wales. It was not until 1409 that his revolt in quest of Welsh independence was suppressed by Henry IV. The tradition of conferring the title "Prince of Wales" on the heir apparent of the monarch is usually considered to have begun in 1301, when King Edward I of England invested his son Edward of Caernarfon with the title at a Parliament held in Lincoln.
Edward of Middleham, Prince of Wales Phillipa Gregory's "Cousins' War" series, and in the TV adaptation of the novels, "The White Queen". From 1483 to 1484, Edward used the arms of his father, debruised with a label of three points Argent. Edward of Middleham, Prince of Wales Edward of Middleham, Prince of Wales, Earl of Chester, Duke of Cornwall, 1st Earl of Salisbury (December 1473 – 9 April 1484), was the heir apparent of King Richard III of England and his wife, Anne Neville. He was Richard's only legitimate child and died aged ten. Edward was allegedly born in December 1473 at Middleham Castle, a stronghold