Gradlon
Gradlon is a legendary king of Cornouaille, a historical region in Brittany, France. He is a prominent figure in Arthurian legend and Breton folklore, particularly associated with the city of Ys. According to legend, Ys was a magnificent city built below sea level, protected by a dike and a gate that was opened only by the king's key. Gradlon is often depicted as a just and wise ruler who ruled his kingdom with fairness.
The most famous story involving Gradlon concerns the destruction of Ys. It is said that his daughter,
The legend of King Gradlon and the city of Ys serves as a cautionary tale about pride,