STOCKHOLM, SWEDEN - SEPTEMBER 09: Prince Carl Philip, Princess Sofia and Prince Alexander attend the christening of Prince Alexander of Sweden at Drottningholm Palace Chapel on September 9, 2016 in Stockholm, Sweden. (Photo by Luca Teuchmann/WireImage)

STOCKHOLM, SWEDEN - SEPTEMBER 09:  Prince Carl Philip, Princess Sofia and Prince Alexander attend the christening of Prince Alexander of Sweden at Drottningholm Palace Chapel on September 9, 2016 in Stockholm, Sweden.  (Photo by Luca Teuchmann/WireImage)