The flag of Wales
The flag of Wales consists of a red dragon passant on a white and green field. Nowadays, Wales and Bhutan are the only countries to have a dragon on their flag. The Welsh flag is said to incorporate the red dragon of Cadwaladr, King of the county of Gwynedd during the 7th century, along with the green and white colours of the Tudor dynasty, which ruled England from 1485 until 1603. The red dragon was included in the Tudor royal arms to attest their Welsh descent. The flag was notably used by king Henry VII, the first monarch of the House of Tudor, at the battle of Bosworth in 1485. It was adopted by the Welsh assembly as the official flag of Wales in 1959.
The Welsh flag is the only flag in the United Kingdom, which is not used in the Union Jack. The country has no explicit recognition in the flag because Wales was annexed to England by Edward I in 1282 and considered to be part of the Kingdom since the Laws in Wales Acts 1535–1542,.
In various tales, legends and traditions, the dragon is the guardian of the hidden treasure. It is depicted in many ways and different styles. Even among the Celt, the two leg dragon was frequent and must have been related to the human being. As we will see, this does not mean that the four leg one referred to the animal only. This will bring us to the main question: what kind of hidden treasure was the dragon suppose to guard ?