The Queen's Beasts are ten heraldic statues representing the genealogy of Queen Elizabeth II, depicted as the Royal supporters of England. 
The Yale was a mythical beast, supposedly white and covered with gold spots and able to swivel each of its horns independently. It descends to the Queen through King Henry VII, who inherited it from his mother, Lady Margaret Beaufort. The shield shows a portcullis surmounted by a royal crown. The portcullis (uncrowned) was a Beaufort badge, but was used both crowned and uncrowned by Henry VII.
Own work
Horemhat &amp; Sodacan