Philippe Charles François, 3rd Duke of Arenberg(1663 - 3rd Duke of Arenberg 1681, aged 18 - Battle of Slankamen, 1691, aged 28 ) was also the 9th Duke of Aarschot. He married in 1684 Marie-Henriette d'Alcaretto, marquise of Grana and Savona, Italy.
He was promoted to be a Knight of the Order of the Golden Fleece in 1685. As his father, the 2nd Duke, he was Grand-Bailli and Capitaine-Général 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 was succeeded by his son, Leopold Philippe d'Arenberg, as the 4th Duke of Arenberg.
His daughter Marie Anne married François Egon de La Tour d'Auvergne, nephew of Turenne. Marie Anne's daughter Marie Anne Henriette Leopoldine de la Tour d'Auvergne married Count Palatine John Christian of Sulzbach, the son of Theodore Eustace, Count Palatine of Sulzbach and his wife Eleonore of Hesse-Rothenburg.