Prince Constantijn of the Netherlands
Member of the House of Orange-Nassau
Prince Constantijn of the Netherlands is the third and youngest son of the former Dutch queen, Beatrix, and her husband, Claus von Amsberg, and is the younger brother of the reigning Dutch king, Willem-Alexander. Wikipedia
Born: 1969 (age 54 years), Academisch Ziekenhuis Utrecht
Spouse: Princess Laurentien of the Netherlands (m. 2001)
Great-grandparents: Wilhelmina of the Netherlands, Duke Henry of Mecklenburg-Schwerin, Armgard von Cramm, and more