•
Frederic August Alexander of Beaufort-Spontin (1751–1817), Count of Beaufort, Marquis of Spontin and of Florennes, was the son of Charles Albert (1713-1753), made Marquis of Beaufort-Spontin with princely rank in 1746, and of his wife Countess Marie-Marguerite de
Glymes (1732-1755), heiress of the Counts of Glymes. He was elevated to the rank of Duke in the
Austrian Netherlands in 1782 and to
Imperial count in 1789. He was the Chamberlain of
Archduke Charles of Austria in Brussels, and the Governor-General of the Netherlands on behalf of the
Sixth Coalition Powers in 1814. He was also President of the Privy Council, Chamberlain, and Grand Marshal of the Court of King
William I of the Netherlands. •
Frederic Louis Ladislas, 2nd Duke of Beaufort-Spontin (1809–1834). •
Alfred Charles August, 3rd Duke of Beaufort-Spontin (1816–1888), son of the first duke's second marriage to Countess Ernestine of
Starhemberg, became a hereditary member of Austria's
House of Lords, receiving the title of
Prince von Beaufort and the style of
Serene Highness in 1876. •
Friedrich Georg Maria Anton Michael, 4th Duke of Beaufort-Spontin (1843–1916), was the son of Duke Alfred by his first wife, Pauline de Forbin-Janson. Although born in Brussels, he died on the family's
entailed Bohemian estate of Petschau during
World War I. By his marriage to Princess Marie Mélanie
de Ligne he was the father of the fifth duke. •
Heinrich Maria Eugen, 5th Duke of Beaufort-Spontin (1880–1966), born in Paris, he too served in Austria's
upper house until the abolition of the
Austro-Hungarian empire in 1918, having in 1910 wed Countess Marie-Adelheid von
Silva-Tarouca, by whom he was the father of the sixth duke. He died in
Graz, Austria. •
Friedrich, 6th Duke of Beaufort-Spontin (1916–1998), was born in Bohemia and died in Graz, having been a farmer in
Steiermark. •
Friedrich Christian, 7th Duke of Beaufort-Spontin (born 1944) is the son of the sixth duke by his 1943 marriage to Christiane Steinheuer. Born at Petschau, he is a physician specializing in nuclear medicine, formerly a professor at
Graz University, and lives in Steiermark, Austria. As neither he nor his brother, Count Christian de Beaufort-Spontin (born 1947), has sons by their marriages, the ducal and princely titles have no heirs in the next generation. ==Gallery of castles==