Henry I of Nassau-Siegen was Count of Nassau-Siegen, a part of the County of Nassau, and ancestor of the House of Nassau-Siegen. He comes from the Ottonian branch of the House of Nassau.
Drawing by Bernard van Orley for the tapestry with Henry I of Nassau-Siegen and Adelaide of Heinsberg and Blankenburg
Siegen Castle
Ginsburg Castle
Count John I of Nassau-Siegen, German: Johann I. Graf von Nassau-Siegen, was since 1362 Count of Nassau-Siegen. He descended from the Ottonian Line of the House of Nassau.
Emperor Charles IV. Detail from the Votive Panel of Jan Očko of Vlašim, before 1371. Convent of Saint Agnes, Prague.
Gerlach of Nassau, Archbishop of Mainz. Anonymous engraving of a statue made by Schonhofer in 1361, 17th century. Rijksmuseum, Amsterdam.
Hermannstein Castle. Photo: Manuel Funk, 2011.