King Willem-Alexander of the Netherlands (L) signed the honor book as Queen Maxima (C ) of the Netherlands and Portugal's President Marcelo Rebelo de Sousa (R ) look on during a welcome ceremony at the Belem Palace in Lisbon, on October 10, 2017, in the first of a 3 days Royals state visit to Portugal. Photo: Pedro Fiuza ( Photo by Pedro Fiúza/NurPhoto via Getty Images)
