Question: Who is Philippe Charles D'Arenberg's uncle?

Knowledge 1: Philippe Charles d'Arenberg
Philippe Charles François, 3rd Duke of Arenberg (10May 1663—25 August 1691) was also the 9th Duke of Aarschot.He became a knight of the Order of the Golden Fleece in 1685.Like his father, Charles Eugene, 2nd Duke of Arenberg, he was Grand-Bailiff and Captain-General of Hainaut.The youngest general in the imperial army at the Battle of Slankamen (in modern-day Vojvodina, Serbia), he died from his wounds on August 19, 1691.He married Maria Enrichetta del Carretto, Marchesa de Grana e Savona in Italy, in 1684.He was succeeded by their son, Leopold Philippe d'Arenberg, as the 4th Duke of Arenberg, whose descendants include the current line of the Prince-Dukes d'Arenberg, as well as Empress Elisabeth of Austria and Albert I, King of the Belgians.His daughter Marie Anne (1689-1736) married François Egon de La Tour, Count d'Auvergne and Margrave of Berg-op-Zoom, a French "prince étranger" and nephew of the Marshal of France Turenne.Marie Anne's daughter Marie Henriette de La Tour d'Auvergne, Margravine of Berg-op-Zoom married John Christian, Count Palatine of Sulzbach, and was the mother of Charles Theodore, Elector of Bavaria. [SEP] Knowledge 2: Charles Eugene, 2nd Duke of Arenberg
Charles Eugene, 2nd Duke of Arenberg (1633–1681), a Knight of the Order of the Golden Fleece since 1678, became 2nd Duke of Arenberg in 1674 on the death of his half-brother Philippe François, 1st Duke of Arenberg.The original title had been awarded on 6 June 1644, by Habsburg Emperor Ferdinand III, Holy Roman Emperor, making the principality of Arenberg a dukedom of the Austrian Empire..He married Marie-Henriette de Cusance, marquise de Varambon in 1660.Their two sons Philippe Charles François, 3rd Duke of Arenberg and Alexandre, fell in battle in 1691 and 1683 respectively.He was Grand-Bailli and Capitaine-Général of Hainaut.
Knowledge 1: Philippe Charles d'Arenberg
Philippe Charles François, 3rd Duke of Arenberg (10May 1663—25 August 1691) was also the 9th Duke of Aarschot.He became a knight of the Order of the Golden Fleece in 1685.Like his father, Charles Eugene, 2nd Duke of Arenberg, he was Grand-Bailiff and Captain-General of Hainaut.The youngest general in the imperial army at the Battle of Slankamen (in modern-day Vojvodina, Serbia), he died from his wounds on August 19, 1691.He married Maria Enrichetta del Carretto, Marchesa de Grana e Savona in Italy, in 1684.He was succeeded by their son, Leopold Philippe d'Arenberg, as the 4th Duke of Arenberg, whose descendants include the current line of the Prince-Dukes d'Arenberg, as well as Empress Elisabeth of Austria and Albert I, King of the Belgians.His daughter Marie Anne (1689-1736) married François Egon de La Tour, Count d'Auvergne and Margrave of Berg-op-Zoom, a French "prince étranger" and nephew of the Marshal of France Turenne.Marie Anne's daughter Marie Henriette de La Tour d'Auvergne, Margravine of Berg-op-Zoom married John Christian, Count Palatine of Sulzbach, and was the mother of Charles Theodore, Elector of Bavaria. [SEP] Knowledge 2: Bonifazio Bevilacqua Aldobrandini
Bonifazio Bevilacqua Aldobrandini (1571 – April 7, 1627) was an Italian Cardinal.He was the uncle of Pope Gregory XIV.
Knowledge 1: Philippe Charles d'Arenberg
Philippe Charles François, 3rd Duke of Arenberg (10May 1663—25 August 1691) was also the 9th Duke of Aarschot.He became a knight of the Order of the Golden Fleece in 1685.Like his father, Charles Eugene, 2nd Duke of Arenberg, he was Grand-Bailiff and Captain-General of Hainaut.The youngest general in the imperial army at the Battle of Slankamen (in modern-day Vojvodina, Serbia), he died from his wounds on August 19, 1691.He married Maria Enrichetta del Carretto, Marchesa de Grana e Savona in Italy, in 1684.He was succeeded by their son, Leopold Philippe d'Arenberg, as the 4th Duke of Arenberg, whose descendants include the current line of the Prince-Dukes d'Arenberg, as well as Empress Elisabeth of Austria and Albert I, King of the Belgians.His daughter Marie Anne (1689-1736) married François Egon de La Tour, Count d'Auvergne and Margrave of Berg-op-Zoom, a French "prince étranger" and nephew of the Marshal of France Turenne.Marie Anne's daughter Marie Henriette de La Tour d'Auvergne, Margravine of Berg-op-Zoom married John Christian, Count Palatine of Sulzbach, and was the mother of Charles Theodore, Elector of Bavaria. [SEP] Knowledge 2: Hysen Hoxha
Hysen Efendi Hoxha( 1861–1934) was an Albanian politician, mayor of Gjirokastër, and the uncle of Enver Hoxha.

Answer: Philippe François, 1st Duke of Arenberg