Investec Derby Festival - Day Two - Investec Derby Day - Epsom Racecourse [Getty Images]

Princess Eugenie With Her Union Jack Painted Nails At The Investec Derby Festival At Epsom In Surrey. (Photo by Mark Cuthbert/UK Press via Getty Images) — see more

Princess Eugenie With Her Union Jack Painted Nails At The Investec Derby Festival At Epsom In Surrey. (Photo by Mark Cuthbert/UK Press via Getty Images)

UK Press Mark Cuthbert