BORGHOLM, SWEDEN - JULY 15:  Princess Estelle of Sweden is seen in front of Solliden Palace to celebrate the 40th birthday of Crown Princess Victoria of Sweden on July 15, 2017 in Borgholm, Sweden.  (Photo by Andreas Rentz/Getty Images)
BORGHOLM, SWEDEN - JULY 15:  Prince Oscar of Sweden, Prince Daniel of Sweden, Princess Estelle of Sweden and Crown Princess Victoria of Sweden are seen meeting the people gathered in front of Solliden Palace to celebrate the 40th birthday of Crown Princess Victoria of Sweden on July 15, 2017 in Borgholm, Sweden.  (Photo by Andreas Rentz/WireImage)
BORGHOLM, SWEDEN - JULY 15:  Prince Oscar of Sweden, Prince Daniel of Sweden, Princess Estelle of Sweden, Crown Princess Victoria of Sweden and King Carl Gustaf of Sweden are seen meeting the people gathered in front of Solliden Palace to celebrate the 40th birthday of Crown Princess Victoria of Sweden on July 15, 2017 in Borgholm, Sweden.  (Photo by Andreas Rentz/WireImage)
BORGHOLM, SWEDEN - JULY 15:  Princess Estelle of Sweden is seen in front of Solliden Palace to celebrate the 40th birthday of Crown Princess Victoria of Sweden on July 15, 2017 in Borgholm, Sweden.  (Photo by Andreas Rentz/Getty Images)