STOCKHOLM, SWEDEN - JULY 14: Princess Madeleine of Sweden, Chris O'Neill, Princess Leonore of Sweden and Prince Nicolas of Sweden arrive for a thanksgiving service on the occasion of The Crown Princess Victoria of Sweden's 40th birthday celebrations at the Royal Palace on July 14, 2017 in Stockholm, Sweden.  (Photo by Patrick van Katwijk/Getty Images)
STOCKHOLM, SWEDEN - JULY 14: Princess Madeleine of Sweden, Chris O'Neill, Princess Leonore of Sweden and Prince Nicolas of Sweden arrive for a thanksgiving service on the occasion of The Crown Princess Victoria of Sweden's 40th birthday celebrations at the Royal Palace on July 14, 2017 in Stockholm, Sweden.  (Photo by Patrick van Katwijk/Getty Images)
STOCKHOLM, SWEDEN - JULY 14: Princess Madeleine of Sweden, Chris O'Neill, Princess Leonore of Sweden and Prince Nicolas of Sweden after the thanksgiving service on the occasion of The Crown Princess Victoria of Sweden's 40th birthday celebrations at the Royal Palace on July 14, 2017 in Stockholm, Sweden.  (Photo by Patrick van Katwijk/Getty Images)