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Biography
Philippe Jules François Mancini (Paris, 1676-Paris, 1768), duc de Nivernais was a French aristocrat and member of the Mancini family. As son of Philippe Mancini and Diane Gabrielle Damas de Thianges, he was the great-nephew of both King Louis XIV of France's mistress, Madame de Montespan, and his first chief minister, Cardinal Mazarin.
In 1709 he married Maria Anna Spinola. Their only child was the academician Louis-Jules Mancini-Mazarini, the final duc de Nevers.
He could not inherit the title of duc de Nevers from his father in 1707, because the duchy had not been properly registered at the Parlement de Paris. In 1709, he inherited the titles of prince de Vergagne, grandee of Spain and Prince of the Holy Roman Empire from his father-in-law. In 1720 he received letters of confirmation for the duchy of Nevers from the Parlement. In 1730, he abdicated as duke in his son's favour.