van Tuyll van Serooskerken of Knyphausen (Germany), after the death of her husband, Count Christian Frederik Bentinck (1734–1768) (son of Charlotte-Sophie von Aldenburg und Knyphausen and Willem Bentinck, Count Bentinck from 1732), was Regent Dowager for their son, Wilhelm II Gustav van Bentinck (1762–35), who reigned 1768–1810, 1813 and 1818–35. The territory was annexed to the Netherlands in 1810 and occupied by Russia 1813–18. Marie Katharina lived 1743–98. Jan Maximiliaan van Tuyll (1771–1843) was the governor of Utrecht and then the first governor of North Holland. He married Louise van Hardenbroek, daughter of Johan van Hardenbroek and 19th century In 1822, The High Council of Nobility declared members of the family were competent since early times to carry the oldest title of nobility, baron. They are "noblesse immemoriale", without ennoblement, predating 1351, from when on nobles of non-knightly origin were created in Italy. This does not correspond with the modern Dutch genealogists view that the family was originally a patrician, but not ancient noble family. The "baron de Tuyll", Diederik Jacob van Tuyll van Serooskerken (1772–1826), was a Major General in the Russian army, Russian envoy at the court of the King of Portugal and Brazil, and from 1815 Russian plenipotentiary to the Holy See. He had colloquies in regard to the union of the two Churches, and from 1822 to 1827, was Russian minister to the United States and resident of Decatur House. He represented the Holy Alliance in the United States. As a consequence of his stay, a part of the silver collection of the White House carries the family coat of arms. His four children bore the surname "Baron van Tuyll van Serooskerken". His grandson Carel Lodewijk van Tuyll (1784-1835), in recognition of services rendered during the Napoleonic Wars, was permitted to purchase 4000 acres of land from the Canada Company in 1832 and founded the town of Bayfield, Ontario. In 1851, his son Vincent Gildemeester van Tuyll (1812–1860), in partnership with Prince Henry of Orange, joined John F. Loudon in the discovery of the biggest tin deposit until today on the island of Billiton. Together they founded what is now the world's largest diversified resources company, Billiton. Vincent's son Reginald van Tuyll (1845–1903) may have inspired the eponymous character in Pelham Grenville Wodehouse's book Indiscretions of Archie, 1921. He married in 1881 Countess Anna Mathilda van Limburg Stirum (1854–1932) after the death of the Crown Prince