He first married
Lady Marie Thérèse Charlotte Bruce (1697–1736), daughter of
Thomas Bruce, 2nd Earl of Ailesbury, an English nobleman who lived in exile in
Brussels for much of his life, and his second wife
Charlotte d'Argenteau, comtesse d'Esneux. Their children were:
1) Marie-Thérèse-Josepha de Hornes (19 October 1725 – 19 June 1783):
married Prince Philip Joseph of Salm-Kyrburg. They had 10 children: • Marie Maximiliane Louise (1744–1790), married Jean Bretagne Charles de La Trémoille, Duc de Thouars •
Frederick III (1745–1794), later prince of Salm-Kyrburg, executed in the French Revolution • Auguste Frederica (1747–1822), married
Anne Emmanuel, 8th Duke of Croÿ • Charles Augustus (1750) • Marie Louise (1753) • Louis Joseph Ferdinand (1753–1774) • Elisabeth Claudine (1756–1757) •
Amalie Zephyrine (1760–1841), married
Anton Aloys, Prince of Hohenzollern-Sigmaringen •
Karl, Prince of Hohenzollern-Sigmaringen x
Marie Antoinette Murat •
Karl Anton, Prince of Hohenzollern •
Princess Marie of Hohenzollern-Sigmaringen x
Prince Philippe, Count of Flanders •
Albert I, King of the Belgians • Charles Albert Henry (1761) • Maurice Gustav Adolf (1761–1813), married Countess Christiane von Wartenberg
2) Elisabeth-Philippine-Claude de Hornes (1733–1826):
married Prince Gustav Adolf of Stolberg-Gedern. They had four daughters: •
Louise Maximiliane (1752–1824), married
Charles Edward Stuart "The Young Pretender" • Caroline Auguste (1755–1828), married firstly
Carlos Fitz-James Stuart, 4th Duke of Liria and Jérica and secondly Domingo Duque de Castelfranco • Franziska Claudia (1756–1836), married Nicolas Antoine Conte d'Arberg de Valengin • Therese Gustavine (1757–1837), nun in Mons Following his first wife's death, he was married to Princess Henriette Thérèse Norbertine of Salm-Kyrburg (1711–1751) and then, after her death, to Princess Marie Albertine de Gavre (1735–1797), daughter of
Charles I Alexandre, 1st Prince de Gavre. ==References==