King Carl XVI Gustaf and Queen Silvia of Sweden pose with Queen Maxima and King Willem-Alexander of the Netherlands at the Royal Palace in Amsterdam on April 4 at the start of the Swedish royals' two-day official visit to the Netherlands. (Photo by Michel Porro/WireImage)
Queen Maxima, Queen Silvia, King Willem-Alexander, and King Carl XVI Gustaf attend a presentation of the book The Swedes and the Dutch Were Made for Each Other at the Rijksmuseum in Amsterdam on April 5. (Photo: FRANK VAN BEEK/AFP/Getty Images)