Adolf was the count of Nassau from about 1276 and the elected king of Germany from 1292 until his deposition by the prince-electors in 1298. He was never crowned by the pope, which would have secured
Small throne seal of King Adolf (1298)
Portrait by Arnold Montanus, 1662
Part of the image of King Adolf in the Frankfurt Hall of Kings
Deposition of Adolf and Election of Albert, illustration from the Chronicles of the Bishops of Würzburg
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