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Queen Elizabeth II presents Lucinda Prior-Palmer of Great Britain with the trophy for winning the Badminton Horse Trials in Gloucestershire on 11th April 1976. (Photo by Ed Lacey/Popperfoto/Getty Images)

Queen Elizabeth II presents Lucinda Prior-Palmer of Great Britain with the trophy for winning the Badminton Horse Trials in Gloucestershire on 11th April 1976.  (Photo by Ed Lacey/Popperfoto/Getty Images)