died without children. Comte Pierre de Polignac, later Prince Pierre, Duke of Valentinois (father of Rainier III of Monaco and therefore an ancestor of the entire current princely family) is descended from a different and cadet branch of the Polignac family, which has the comital rank only. Pierre was the youngest son, descended from the youngest son of the first Duke of Polignac. Ancestry See also List of Ambassadors of France to the United Kingdom Literature W. Schlésinger, Les femmes du XVIIIe siècle: La duchesse de Polignac et son temps (Paris, 1889) Michael St. John Packe, refers to Polignac as "rascally" in his "Life of John Stuart Mill". Notes 1780 births 1847 deaths People from Versailles Politicians from Île-de-France French Ultra-royalists Legitimists Prime Ministers of France Government ministers of France Members of the Chamber of Peers of the Bourbon Restoration Jules Jules Jules French slave owners Recipients of payments from the Slavery Abolition Act 1833