| On the evening of April 15, 2019, King Willem-Alexander, Queen Maxima, Princess Beatrix, Prince Constantijn and Princess Laurentien attended the annual King's Day (Koningsdag) concert at De Flint Theater in Amersfoort. The concert was attended by invited audiences that are involved in the organization of Koningsdag in Amersfoort. (Queen Maxima wore a bespoke dress by Claes Iversen). Every year, the concert is held in the county where the Dutch Royal Family will celebrate King’s Day. The King's Day concert traditionally takes place in the month preceding King's Day. The date of King's Day marks the birth of King Willem-Alexander, which is April 27. |
