It's just a day out for the girls in the British royal family. Queen Elizabeth II invited her daughter-in-law, Camilla Duchess of Cornwall, and her granddaughter-in-law, Catherine Duchess of Cambridge, along for tea at one of London's most famous department stores, Fortnum & Mason.

All three ladies were decked out in varying shades of blue that called to mind the upcoming spring, as they posed for pictures, greeted staff, and took a tour of the store's luxurious food hall before sitting down to take their tea. The royal ladies were offered bouquets of yellow daffodils, and Middleton had two of them pinned to the lapel of her periwinkle Missoni coat, in honor of St. David's Day, the patron saint of Wales.

The outing marked one of the first events of the queen's Diamond Jubilee this year, which will celebrate her 60 years of the throne. The tea, which was a morning engagement despite its traditionally being an afternoon meal, was also attended by approximately 150 staff, including former employees, some of whom worked at the venue during the queen's coronation, reports The Daily Mail. The location was officially renamed The Diamond Jubilee Tea Station at the event. Then Queen Elizabeth unveiled a plaque to commemorate the redevelopment of the surrounding Piccadilly neighborhood.

The Diamond Jubilee celebration will continue throughout the year, with the queen making several public appearances with the rest of the royal family. Prince William remains on his six-week tour of duty as a helicopter pilot in the Falkland Islands.

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