Hysen Hoxha
Hysen Efendi Hoxha( 1861–1934) was an Albanian politician, mayor of Gjirokastër, and the uncle of Enver Hoxha.
Bonifazio Bevilacqua Aldobrandini
Bonifazio Bevilacqua Aldobrandini (1571 – April 7, 1627) was an Italian Cardinal.
He was the uncle of Pope Gregory XIV.
Princess Caroline Napoléon
Princess Caroline Marie Constance Napoléon (born 24 October 1980) is a member of the House of Bonaparte, which reigned as Emperors of the French twice during the 19th century.
She is the first child and eldest daughter of Prince Charles Napoléon and his first wife, Princess Béatrice of Bourbon-Two Sicilies.
Princess Béatrice of Bourbon-Two Sicilies
Princess Béatrice Marie Caroline Louise Françoise of Bourbon-Two Sicilies (born 16 June 1950 in Saint-Raphaël, Var, France) is the eldest daughter of Prince Ferdinand, Duke of Castro, Castro-line claimant to the headship of the House of Bourbon-Two Sicilies, and his wife, Chantal de Chevron-Villette.
Her younger brother, Prince Carlo, Duke of Castro, is the current Castro-line claimant to the headship of the House of Bourbon-Two Sicilies.
Since 2014, Béatrice has served as Grand Chancellor of the Sacred Military Constantinian Order of Saint George.
Ivan Novoseltsev
Ivan Petrovich Novoseltsev( born January 23, 1979) is a Russian former professional ice hockey winger.
He is the uncle of Vladislav Namestnikov.
John Montgomery Glover
John Montgomery Glover( September 4, 1822 – November 15, 1891) was a North American politician, who served as a U.S. Representative from Missouri, he was the uncle of John Milton Glover.
Tarcisio Fusco
Tarcisio Fusco was an Italian composer of film scores.
He was the brother of the composer Giovanni Fusco and the uncle of operatic soprano Cecilia Fusco.
Giuseppe Bonizzoni
Giuseppe Bonizzoni( 22 April 1908 – 21 July 1976) was an Italian professional footballer who played as a defender.
He was the uncle of former footballer and manager Luigi Bonizzoni.
Christopher H. Clark
Christopher Henderson Clark (1767 – November 21, 1828) was a congressman and lawyer from Virginia.
He was the brother of James Clark, the uncle of John Bullock Clark, Sr. and the great-uncle of John Bullock Clark, Jr..
Bradley Orr
Bradley James Orr( born 1 November 1982) is an English retired footballer.
He is the uncle of Rangers defender Jon Flanagan.

Question: Who is the uncle of Princess Caroline Napoléon?
Answer: Prince Carlo, Duke of Castro