Wyvern wyvern is thought to have derived from the figure of the dragon encountered by Trajan's legions in Dacia. It may be the origin of the red dragon of Wales and the golden dragon of the Kingdom of Wessex carried at the Battle of Burford in AD 752. The concept of winged snakes is common in cultures around the Mediterranean, with a notable example being the Egyptian goddess Wadjet. The oldest creatures outright referred to as "winged dragons" are Helios' chariot steeds, which aid Medea. Wyverns are very similar to dragons, and in many languages, cultures and contexts no clear distinction
Women in heraldry systems of heraldry these differences remain active. Heraldry has its origins from associations with warfare and the age of chivalry. The traditional shield was also associated with war and so women did not usually display familial arms on escutcheons. Rather, they could display these on various other shapes: more commonly the lozenge, an oval, or a cartouche. The crest–a device that sits atop the shield on an armorial achievement–likewise was not accorded to heraldic devices of women as these had associations with warfare. In many heraldic traditions, arms generally are passed patrilineally. In other nations, in Canadian heraldry for example,