The Prince Of Wales And The Duchess Of Cornwall Visit Louisville, Kentucky [Getty Images]

LOUISVILLE, KY - MARCH 20: Camilla, Duchess of Cornwall is shown a horse during a visit to Churchill Downs racetrack on the fourth day of a visit to the United States on March 20, 2015 in Louisville, KY. The Prince and Duchess are in Washington as part of a Four day visit to the United States. (Photo by Chris Radburn - WPA Pool/Getty Images)

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