On 30 June 1978, Prince Michael was married, at a civil ceremony, at the Rathaus, Vienna, Austria, to Baroness Marie Christine von Reibnitz, the only daughter of the Silesian nobleman Baron Gunther Hubertus von Reibnitz and of his Austro-Hungarian wife, Maria Anna Carolina Franziska Walpurga Bernadette, Countess Szapáry de Muraszombath, Széchysziget et Szapár.