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Louise coordinated with her mum who also wore a long sleeved floral dress to the event.
Also, in attendance at the event were her cousins, Princess Beatrice, Prince Harry, Prince William, Zara Tindall and Peter Philips.
Her appearance at the event is a surprise as the young royal is rarely pictured out in public as Edward and Sophie have worked hard to give them a life as normal as possible.
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Of course, now she is getting older, Louise has been attending more family events.
In fact, Louise joined her family for the Christmas church service in Sandringham last year and played a special role as an attendant in her cousin, Princess Eugenie’s wedding.
