From when was the father of Ernst Gunther pretender to the throne of Schleswig-Holstein?
Ernst Gunther, Duke of Schleswig-Holstein Ernst Gunther, Duke of Schleswig-Holstein (August 11, 1863 – February 22, 1921) was a son of Frederick VIII, Duke of Schleswig-Holstein and Princess Adelheid of Hohenlohe-Langenburg. He inherited his father's title as titular duke of Schleswig-Holstein.
House of Bismarck The House of Bismarck is a German noble family that rose to prominence in the 19th-century, largely through the achievements of the statesman Otto von Bismarck. He was granted the hereditary title of Prince of Bismarck in 1871, a hereditary comital title in 1865 and a ducal title, Duke of Lauenburg, held only for his own lifetime. Several of Otto's descendants, notably his son Herbert, Prince of Bismarck, were also politicians.