Winston (1937–1957) was a chestnut gelding ridden by both King George VI in 1947 and Queen Elizabeth II in the Trooping the Colour ceremony from 1949 to 1956.
In 1947, Winston carried King George VI during the first Trooping of the Colour to take place since 1939.
Winston participated in various roles in other Royal ceremonial events when not working as a police horse.
[5] During the Coronation of Queen Elizabeth II procession, Winston was ridden by Sir John Nott-Bower, the Commissioner of Police of the Metropolis.
Whilst later being ridden by a mounted police officer at the Police mounted training establishment at Thames Ditton, Winston slipped and dislocated his back on 7 February 1957, requiring him to be euthanised.