On July 10, 1935, he married Countess Gladys Széchényi Sárvár-Felsövidék, daughter of Count László Széchényi Sárvár-Felsövidék and Gladys Moore Vanderbilt.
Count László Széchenyi de Sárvár-felsővidék (LÁSZLÓ Jenő Mária Henrik Simon) (Horpács, 18 February 1879–Budapest, 5 July 1938) was an Austro Hungarian military officer, Imperial Chamberlain, diplomat and venture capitalist.
Of its many holdings, the family held the Nádasdy Castle in Sárvár, Hungary, the Csejte Castle, in Čachtice, Slovakia which is situated on a hill adjacent to a nature reserve, and the Nádasdy Mansion in Nádasdladány, Hungary.