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The proceedings were also enjoyed by the Queen, herself a horse owner, who probably knows more about equestrian sports than many of the other racegoers.
She was accompanied by Prince Charles and the Duchess of Cornwall plus granddaughters Princess Beatrice and Princess Eugenie.
Sophie, Countess of Wessex (right) also joined the fun, showing off her trimmed down new figure in a rose pink jacket and skirt, teamed with a spectacular hat.
It's a little princess!