On May 25, 2020, Princess Laurentien turned 54. Princess Laurentien of the Netherlands is the wife of Prince Constantijn and sister-in-law of King Willem-Alexander and Queen Maxima. Laurentien was born in Leiden on 25 May 1966. Princess Laurentien married Prince Constantijn in The Hague on 17 May 2001. Princess Laurentien and Prince Constantijn have three children: Countess Eloise, Count Claus-Casimir and Countess Leonore. Happy birthday to you, Princess Laurentien.
