A BATTLE HARDY BEAST Along with the Welsh Dragon and White Greyhound, Henry VII also inherited a mythical beast from his mother Lady Margaret Beaufort. That beast was known as the Yale, or Centicore, often depicted white, with gold spots.
It’s appearance according to Roman Author Pliny the Elder was “the size of a hippopotamus, with an elephant’s tail, of black or dark brown in color, with the jaws of a boar and horns more than a cubit in length capable of being moved and which in a fight are raised alternately and presented to the attack or sloped backward in turn as opportunity requires”.
Because of its battle prowess it came to symbolize “proud defense”. It is similar to The White Greyhound, in that it was most popular with Henry VII, but first appeared in the heraldry of Henry IV’s younger son John, the father of Lady Margaret.