Son of Louis Phillipe Marie Alexandre, 3rd Prince de Wagram (1836-1911), he succeeded his father as 4th Prince 15 July 1911. The 4th Prince was unmarried, and was an active collector of impressionist paintings.
Bibliography
1913
Frimmel, Theodor von. Lexicon der Wiener Gemaeldesammlungen. 2 vols. Munich, 1913-1914:I:107-108
1969
La Coste-Messelière, M.-G. de. "Un jeune prince amateur d'impressionnistes et chauffeur." L'Oeil 179 (November 1969):18+