Queen Elizabeth riding side-saddle as she returns to Buckingham Palace, London, after attending the Trooping the Colour ceremony on Horse Guards Parade in June 1993. PA
Queen Elizabeth at the Royal Windsor Horse Show in Berkshire in May 2011. The queen, who had a lifelong passion for horses, was a keen racegoer as well as a successful owner and breeder who enjoyed many notable triumphs. AFP
An undated photo of Princess Elizabeth at Sandringham. AFP
The queen in May 2013 with Harlequin on a visit to the King's Troop Royal Horse Artillery at Woolwich Barracks in south-east London. AFP
A young Queen Elizabeth and Prince Charles in the park at Windsor Castle. AFP
Queen Elizabeth in May 2020 rides Balmoral Fern, a 14-year-old fell pony, in Windsor Home Park. AFP
Queen Elizabeth at Ascot in an event reserved for guests of Windsor Castle, June 1961. AFP
Queen Elizabeth at the Royal Horse Show in Windsor, Berkshire in May 2008. Horses, like dogs, were the queen's lifelong love and she had an incredible knowledge of breeding and bloodlines. Whether it was racing thoroughbreds or ponies, she showed an unfailing interest. PA Photo
Former US president Ronald Reagan with Queen Elizabeth in Windsor Home Park while staying as a guest of the queen. PA Photo
Queen Elizabeth and her daughter Anne, the Princess Royal, near Windsor Castle where members of the royal family had gathered to mourn the death of Queen Elizabeth the Queen Mother, who died in 2002. PA Photo
Queen Elizabeth and the Duke of Edinburgh, left, with a Lippizaner at the stables of the Lipica Stud during their state visit to Slovenia in January 2008. PA
Queen Elizabeth on the racecourse before the opening of the third day of the Royal Ascot meeting, where she took part in an unofficial 'race' and finished fourth to other members of her party of seven. June 1960. PA
Queen Elizabeth in Hyde Park, London, during a visit in 1970 to mark the 70th anniversary of the King's Troop Royal Horse Artillery. PA
Queen Elizabeth during a Trooping of the Colour ceremony at Horse Guard's Parade, London, June 1952. AFP
Queen Elizabeth arriving in Hyde Park in London to mark the 70th anniversary of the King's Troop Royal Horse Artillery in October 2017. PA
Queen Elizabeth riding side-saddle as she returns to Buckingham Palace, London, after attending the Trooping the Colour ceremony on Horse Guards Parade in June 1993. PA
Queen Elizabeth at the Royal Windsor Horse Show in Berkshire in May 2011. The queen, who had a lifelong passion for horses, was a keen racegoer as well as a successful owner and breeder who enjoyed many notable triumphs. AFP
An undated photo of Princess Elizabeth at Sandringham. AFP
The queen in May 2013 with Harlequin on a visit to the King's Troop Royal Horse Artillery at Woolwich Barracks in south-east London. AFP
A young Queen Elizabeth and Prince Charles in the park at Windsor Castle. AFP
Queen Elizabeth in May 2020 rides Balmoral Fern, a 14-year-old fell pony, in Windsor Home Park. AFP
Queen Elizabeth at Ascot in an event reserved for guests of Windsor Castle, June 1961. AFP
Queen Elizabeth at the Royal Horse Show in Windsor, Berkshire in May 2008. Horses, like dogs, were the queen's lifelong love and she had an incredible knowledge of breeding and bloodlines. Whether it was racing thoroughbreds or ponies, she showed an unfailing interest. PA Photo
Former US president Ronald Reagan with Queen Elizabeth in Windsor Home Park while staying as a guest of the queen. PA Photo
Queen Elizabeth and her daughter Anne, the Princess Royal, near Windsor Castle where members of the royal family had gathered to mourn the death of Queen Elizabeth the Queen Mother, who died in 2002. PA Photo
Queen Elizabeth and the Duke of Edinburgh, left, with a Lippizaner at the stables of the Lipica Stud during their state visit to Slovenia in January 2008. PA
Queen Elizabeth on the racecourse before the opening of the third day of the Royal Ascot meeting, where she took part in an unofficial 'race' and finished fourth to other members of her party of seven. June 1960. PA
Queen Elizabeth in Hyde Park, London, during a visit in 1970 to mark the 70th anniversary of the King's Troop Royal Horse Artillery. PA
Queen Elizabeth during a Trooping of the Colour ceremony at Horse Guard's Parade, London, June 1952. AFP
Queen Elizabeth arriving in Hyde Park in London to mark the 70th anniversary of the King's Troop Royal Horse Artillery in October 2017. PA
Queen Elizabeth riding side-saddle as she returns to Buckingham Palace, London, after attending the Trooping the Colour ceremony on Horse Guards Parade in June 1993. PA
The queen with horses throughout the years - in pictures
