http://en.wikipedia.org/wiki/Carlos_Fitz-James_Stuart,_4th_Duke_of_Liria_and_J%C3%A9rica
Don Carlos Genaro Fitz-James Stuart y Silva, 4th Duke of Liria, 4th Duke of Jérica, 4th Duke of Berwick, Grandees of Spain (1752–1787) was a Spanish nobleman. The son of James Fitz-James Stuart, 3rd Duke of Berwick and his wife Maria Teresa de Silva y Alvarez de Toledo, he inherited his father's titles in 1785.
Marriage and issue
On 9 October 1771 he married Princess Caroline zu Stolberg-Gedern (10 February 1755 - 15 April 1828, St.Gratien, near Paris). She was the daughter of Prince Gustav Adolf zu Stolberg-Gedern and Princesse Elisabeth Philippine de Hornes, and the sister of Princess Louise of Stolberg-Gedern, the wife of Jacobite pretender Charles Edward Stuart.
Titles and styles
Spanish titles
4th Duke of Liria and Duke of Jérica, Grandee of Spain 1st Class
12th Duke of Veragua
15th Count of Lemos
11th Count of Gelves
Jacobite titles
4th Duke of Berwick, Grandee of Spain
4th Earl of Tinmouth
4th Baron Bosworth
Styles
Don Carlos Fitz-James Stuart (1773–1787)
His Excellency The Duke of Berwick, Duke of Liria and Xérica (1787–1794)