y Ddraig Goch

As an emblem, the red dragon of Wales has been used since the reign of Cadwaladr, King of Gwynedd from around 655AD and is historically known as the "Red Dragon of Cadwaladr". Ancient leaders of the Celtic Britons that are personified as dragons include Maelgwn Gwynedd, Mynyddog Mwynfawr and Urien Rheged. Later Welsh "dragons" include Owain Gwynedd, Llywelyn ap Gruffydd and Owain Glyndŵr.