Nassau-Siegen. In 1678, William Maurice was appointed co-regent by John Maurice. A year later, John Maurice died and William Maurice succeeded him as the territorial lord of the Protestant part of the principality of Nassau-Siegen and co-ruler of the city of Siegen. He possessed the district of Siegen (with the exception of seven villages) and the districts of Hilchenbach and Freudenberg. He shared the city of Siegen with his second cousin, John Francis Desideratus, the Catholic Fürst of Nassau-Siegen. During his reign, William Maurice had the , the Residenz of the Protestant princes of Nassau-Siegen in the city of Siegen, extended. In 1690, he had the members of his dynasty, who had been buried in the in Siegen, transferred to the there. William Maurice is described as a man of integrity, but not a man of above-average talent. William Maurice died in the Nassauischer Hof in Siegen on 23 January 1691Jul., and was buried in the Fürstengruft there on 12 March. He was succeeded by his son Frederick William Adolf, who was under the guardianship and regency of his mother until 1701. Marriage and issue William Maurice married at Schaumburg Castle on 6 February 1678Jul. to Princess Ernestine Charlotte of Nassau-Schaumburg (Schaumburg Castle, 20 May 1662Jul. – Nassauischer Hof, Siegen, 21 February 1732), the second daughter of Prince Adolf of Nassau-Schaumburg and Elisabeth Charlotte Melander, Countess of Holzappel. From the marriage of William Maurice and Ernestine Charlotte the following children were born: Fürst Frederick William Adolf (Nassauischer Hof, Siegen, 20 February 1680 – Nassauischer Hof, Siegen, 13 February 1722), succeeded his father in 1691. Married: at Homburg Castle on 7 January 1702 to Landgravine Elisabeth Juliana Francisca of Hesse-Homburg (Homburg Castle, 6 January 1681 – Nassauischer Hof, Siegen, 12 November 1707). at the in Bayreuth on 13 April 1708 to Duchess Amalie Louise of Courland (Mitau, 23 July 1687 – , Siegen, 18 January 1750). Charles Louis Henry (Nassauischer Hof, Siegen, 17 March 1682Jul. – Nassauischer Hof, Siegen, 18 October 1694Jul.), was hopman of the company of Swiss soldiers in the Dutch States Army, that had been his father’s, since 1691. Ancestors Notes References Sources (1911). "Willem Maurits, Wilhelm Moritz". In: en (redactie), Nieuw Nederlandsch Biografisch Woordenboek (in Dutch). Vol. Eerste deel. Leiden: A.W. Sijthoff. p. 1578. (2004). "Die Fürstengruft zu Siegen und die darin von 1669 bis 1781 erfolgten Beisetzungen". In: u.a. (Redaktion), Siegener Beiträge. Jahrbuch für regionale Geschichte