HeadingFriedrich Christian, I., Schleswig-Holstein-Sonderburg-Augustenburg, Herzog used in: Integrated Authority File (GND), Germany
Variant NameFriedrich Christian, Herzog von Schleswig-Holstein-Sonderburg-Augustenburg
Sources
Found inNDB/ADB-online
danish duke frederick I of schleswig-holstein-augustenburg [Peder Als / Own photo reproduction of an expired work of art -- Public domain -- http://commons.wikimedia.org/wiki/File:FrederikChristianIofaugustenburg.jpg]