The Ducal House of Hohenberg is an Austrian noble family, descended from Countess Sophie Chotek (1868-1914) who in 1900 married Archduke Francis Ferdinand of Austria-Este (1863–1914), the heir presumptive to the throne of the Austro-Hungarian Empire. As their marriage was a morganatic one, none of their four children were in the line of succession to the Austro-Hungarian throne. Still, they represent the senior agnatic line of the House of Habsburg-Lorraine.