Archduke Ferdinand Karl Ludwig Joseph Johann Maria (1868_1915), brother of Franz Ferdinand, abandoned his dynastic rights to marry Bertha Czuber in 1909.
FranzFerdinand (1863-1914) was born in Graz, Austria.
Ferdinand was also considering the idea of a federalism made up of 16 states; the aim being to avoid disintegration of the fading Austro-Hungarian empire.
FranzFerdinand was buried in a crypt beneath the chapel of his castle, Artstetten, instead of the customary burial place of the Hapsburgs, Capuchin Crypt, in Vienna.
ArchdukeFerdinand Karl Anton Joseph Johann Stanislaus of Austria-Este (1754-1806), fourth son and fourteenth child of Franz I and Maria Theresa, became heir to the Duchies of Modena and Reggio through his marriage to the Este heiress, and served as commander of an Austrian army in the War of the Third Coalition (1805).
ArchdukeFerdinand Karl Joseph of Austria-Este (1781-1850), was the younger son of ArchdukeFerdinand Karl Anton Joseph Johann Stanislaus.
ArchdukeFerdinand Karl Viktor of Austria-Este (1821-1849), was the younger son of Duke Francis IV of Modena.