The Queen's most treasured corgi of all was Susan, who was gifted to the Princess on her 18th birthday in 1944. Susan remained by Elizabeth's side for 15 years, supporting her through the challenges of World War II and her difficult coronation in 1953, which was overshadowed by the passing of her father the previous year. The young Elizabeth loved Susan so much that she bred her to keep a part of her legacy alive through her puppies.

Caroline Perry, the author of the children's book The Corgi and the Queen told Insider that the little dog was "feisty" and "a little bit wild", despite her sweet nature. Susan reportedly bit the palace clock winder, Leonard Hubbard, in 1954 but was fiercely defended by the young monarch.

The royal family’s pets: from chameleons to corgis