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16th April 1973: Lucinda Prior-Palmer, aged 19, the winner of the Badmington Horse Trials, pictured in her riding outfit with the trophy and her pet dog, 'Oliver'. (Photo by Wesley/Keystone/Getty Images)

16th April 1973:  Lucinda Prior-Palmer, aged 19, the winner of the Badmington Horse Trials, pictured in her riding outfit with the trophy and her pet dog, 'Oliver'.  (Photo by Wesley/Keystone/Getty Images)