European dragon usually evil, much like dragon-like creatures of Greece and other dragons of Continental Europe; however, there are exceptions, and many do not want to go to battle unless they feel threatened. These serpents are limbless and wingless. The most famous sea serpent in Norse mythology is Jörmungandr, who is actually a giant born into the body of a serpent by the Norse god Loki, who will one day kill Thor, Norse god of thunder. The red dragon features on, and is the name of the national flag of Wales ("Y Ddraig Goch"). The symbol may originate in Arthurian Legend, or
Flag of Wales form of the Draco standards borne by the Roman cavalry, itself inspired by the symbols of the Dacians or Parthians. The Olm (Proteus anguinus) of Slovenia bear a similarity in miniature to the Draco standard and they are referred to as baby cave dragons by the locals. The green and white stripes of the flag were additions by the House of Tudor, the Welsh dynasty that held the English throne from 1485 to 1603. Green and white are also the colours of the leek, another national emblem of Wales. The oldest known use of the dragon to represent Wales is