HeadingFerdinand, Kurland, Herzog used in: Integrated Authority File (GND), Germany
Ferdinand, Kurland, Herzog used in: Common Library Network (GBV), Göttingen (Germany)
Variant NameFerdinand, Semgallen, Herzog
Ketteler, Ferdinand
Kettler, Ferdinand
Sources
Found inNDB/ADB-online
Ferdinand Kettler. Duke of Courland and Semigallia. [Unknown authorUnknown author / P. Ārends, Kurzemes Hercogu Kapene, Rīga, 1940. -- Public domain -- http://commons.wikimedia.org/wiki/File:Ferdinands ketlers.jpg]