Archduke Ferdinand Karl Joseph of Austria-Este
Ferdinand Karl, Archduke of Austria-Este
Archduchess Maria Leopoldine of Austria-Este
Knight of the Order of the Golden Fleece
Knight Grand Cross of the Order of Saint Ferdinand and of Merit
Ferdinand Karl Joseph Austria 1781 1850 lithocolor.jpg
Coat of arms of Habsbourg- Este in 1803.svg
Meyers Konversations-Lexikon, 4th edition (1885–1890)
Biographisches Lexikon des Kaiserthums Oesterreich
Der Militär-Maria Theresien-Orden und seine Mitglieder
Brockhaus and Efron Encyclopedic Dictionary
Ferdinand Karl Joseph von Österreich-Este
Archduke Ferdinand Karl Viktor of Austria-Este
p=karl joseph;n=von osterreich este;oc=2
Bibliography of the History of the Czech Lands