Prince Johann o Schleswig-Holstein-Sonderburg-Glücksburg

Prince Johann o Schleswig-Holstein-Sonderburg-Glücksburg (5 December 1825 – 27 Mey 1911). He wis regent o Greece frae 22 Aprile 1867 tae 24 November 1867 for Keeng George I o the Hellenes. He wis also a brither o Keng Christian IX o Denmark. His mither wis Princess Luise Karoline o Hesse-Kassel, hersel a granddochter o Keeng Frederick V o Denmark.