In 1400, Owain Glyndŵr raised the dragon standard during his revolts against the occupation of Wales by the English crown. Owain's banner known as Y Ddraig Aur or "The Golden Dragon" was raised over Caernarfon during the Battle of Tuthill in 1401 against the English. The flag has ancient origins, Glyndŵr chose to fly the standard of a Golden dragon on a white background, the traditional standard. Fifteen years later the English crown, under the rule of Henry V, used the red dragon standard itself during the Battle of Agincourt. The English forces during the battle utilised Welsh longbowmen, along with their own archers. In 1485, the most significant link between the symbol of the red dragon and Wales occurred when Henry Tudor flew the red dragon of Cadwaladr during his invasion of England. Henry was of Welsh descent and after leaving France with an army of 2000, landed at Milford Haven on 7 August. He made capital of his Welsh ancestry in gathering support and gaining safe passage through Wales. Henry met and fought Richard III at the Battle of Bosworth, and in victory took the English throne. After the battle, Henry carried the red dragon standard in state to St Paul's Cathedral, and later the Tudor livery of green and white was added to the flag.
The flag of Wales ( Welsh : Baner Cymru or Y Ddraig Goch , meaning the red dragon ) consists of a red dragon passant on a green and white field . As with many heraldic charges , the exact representation of the dragon is not standardised and many renderings exist.