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(L-R) Princess Martha Louise, Prince Carl Philip of Sweden, Princess Sofia of Sweden, Prince Nikolaos and Princess Tatiana of Greece and Denmark shelter from the rain under umbrellas as the depart from Honnorbrygga in Oslo to go on a trip onboard the Royal Yacht on MAy 10, 2017 as part of the 80th birthday celebrations of the King and Queen. / AFP PHOTO / NTB scanpix AND NTB Scanpix / BERIT ROALD / Norway OUT (Photo credit should read BERIT ROALD/AFP via Getty Images)