On Wednesday, November 25, 2015, His Majesty King Willem-Alexander and Queen Maxima of the Netherlands accompanied by Her Royal Highness Princess Beatrix of the Netherlands, and His Royal Highness Prince Constantijn of the Netherlands attended the 2015 Erasmusprijs award ceremony held at the Koninklijk Paleis (Royal Palace) in Amsterdam. His Majesty is Patron of the Stichting Praemium Erasmianum (Praemium Erasmianum Foundation).
The winner of the award, worth €150,000, went to Wikipedia and the Wikipedia community for the promotion of the dissemination of knowledge through a “…comprehensive and universally accessible encyclopedia. Thus the initiators of Wikipedia have designed a new and effective democratic platform…” according to a press release.