 Maria Clementina was married, 28 July 1816, at Schönbrunn Palace, Vienna, to her mother's younger brother, Prince Leopoldo of the Two Sicilies, Prince of Salerno, the youngest son of King Ferdinand I of the Two Sicilies and Archduchess Maria Carolina of Austria.From their four children, only a daughter survived adulthood, Princess Maria Carolina of the Two Sicilies (1822–1869), who on 25 November 1844, in Naples, married her paternal first cousin, Prince Henri, Duke of Aumale (1822–1897).Henri was the fourth (and second-youngest) surviving son of King Louis-Philippe of France and his wife Princess Maria Amalia of Naples and Sicily.