Prinz Constantin von und zu Liechtenstein was born on 23 December 1911 in Vienna, Austria-Hungary [now Austria]. He was married to Helene Gräfin Esterházy von Galántha and Maria Elisabeth von Leutzendorff Countess Helene Esterházy von Galántha. He died on 28 March 2001 in Zurich, Switzerland.