1847-1896 (1835–1896) Wilhelm, 6th Count 1896-1927 (1862–1927) Degenhart, 7th Count 1927-1965 (1893–1965) Countess Leonora (1927-2009) Count Wilhelm (1806-1884) Count Paul (1853-1927) Count Paul (1891-1962) Ernst Gundaccar, 8th Count 1965–present (b.1946) Count Helmwig Paul Ernst (b.1970) Count Gundaccar Ernst Robert (b.1977) Countess Valentina (b.2016) Notable members of the house Count John William (1670–1750) After studying at the University of Utrecht, John William was appointed an advisor in 1697. He reorganised the royal advisory, and was responsible for much genealogical work in Austria (). His work first appeared in Vienna in 1705, and it earned him the name "the Father of Austrian Genealogy". Later, Count John William reorganised the archives of Lower Austria, and established a system which continued even after a new repertory of nobility. In 1726, he gained a seat and voice in the Franconian Diet in Rothenburg. When the Wittelsbach King Charles Albert of Bavaria gained the Imperial crown in 1742, Count John William retired from service in Bohemia, and only emerged from retirement following Charles's death in 1745 and the restoration of the Habsburgs to the Imperial throne. Count John William died in 1750 and was buried in Vienna. He was married five times; only his third wife, Maria Domininca Gräfin von Starhemberg, mothered a son and heir, Count Gundacker Thomas. Count Christian Siegmund He became the treasurer of King Frederick Augustus of Poland and Saxony. In 1704, he entered the service of the Austrian Habsburgs, and fought in the War of the Spanish Succession. Captured and imprisoned in Ettlingen in 1707, he gained special favour with Prince Eugene and fought the Turks for the Austrians. In 1716, he fought in the siege of Temesvar (Timișoara) with Prince Eugene, and with the cities' fall that year he delivered the tidings of success to Vienna. During the War of the Polish Succession he already had the rank of a Field Marshal Lieutenant, and he was an Interim Commandant of the Imperial Army in 1734 in the defence of Grevenberg against the French led by Bellisle. In 1735, he was put in charge of the Imperial Cavalry. Christian Siegmund died without heirs in 1737, and in his will had his extensive fortune returned to Steyersberg. Count Casimir Henry Casimir Henry was the brother of Christian Siegmund. During the War of the Austrian Succession, he was a cavalry general and served under Khevenhüller. In 1741, he was promoted to a tactical