Prince Constantijn of the Netherlands

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. He is a member of the Dutch Royal House and currently fourth in the line of succession to the Dutch throne behind his nieces.

11 October 1969

Born on the same birth date (11 October 1969): Merieme Chadid • Stephen Moyer

Born on the same birth day (11 October): Alan Pascoe • Andy Marriott • Cahit Arf • Dottie West • Eddie Dyer • Emily Davison • Ernst Mally • Frederick IV of Denmark • Ilmar Reepalu • James M. McPherson • Jason Arnott • Joe Simon • Ligi Sao • Luke Perry • Masanobu Tsuji • Matt Bomer • Nicolás Jarry • Samuel Clarke • Shin Tae-yong • The Naturals • Tsarevich Dmitry Ivanovich of Russia (1552–1553) • Ty Wigginton • Yang Cheng (born 1985)

Born in the same month (October 1969): Alex Webster • Chris Verene • Dwayne Roloson • Garry Herbert • John Edward • Nancy Kerrigan • Oleg Salenko • Shawn Jamison • Simon Fairweather • Takao Omori