There were contemporary rumors of an incestuous relationship between the duke and his daughter, Marie Louise Elisabeth of Berry. These rumors were never confirmed, although the duke reacted to them by demonstrating affectionate behavior towards her at court. The rumors were also used by the opposition during his period as regent, and were the inspiration of libelous songs and poems  On the death of his father in June 1701, Philippe inherited the dukedoms of Orléans, Anjou, Montpensier and Nemours, as well as the princedom of Joinville. Philippe had died at Saint-Cloud after an argument with Louis XIV at Marly about Chartres' flaunting his pregnant mistress, Marie-Louise de Séry, before Françoise Marie. It has also been claimed that Philippe became so infuriated with Louis for not paying his daughter's dowry that he suffered a paroxysm. Throughout his life Philippe had many mistresses; his wife came to prefer living quietly at Saint-Cloud, the Palais-Royal, or her house at Bagnolet. His most famous mistress was arguably Marie-Thérèse de Parabère. Upon the death of the "prince de Condé" in 1709, the rank of "Premier Prince du Sang" passed from the House of Condé to the House of Orléans. Philippe was thus entitled to the style of "Monsieur le Prince". But the rank of "petit-fils de France" being higher than that of "premier prince", Philippe did not change his style; nor did his son or other heirs make use of the "Monsieur le Prince" style, which had been so long associated with the cadet branch of the "Princes de Condé" that the heads of the House of Orléans preferred to be known at court by their ducal title. In December 1697, the son of the Dauphin Louis de France married Princess Marie-Adélaïde of Savoy, eldest daughter of Philippe's half sister Anne Marie. The match was negotiated as part of the Treaty of Turin, which ended Franco-Savoyard conflict during the Nine Years' War. The couple were the parents of two dauphins of France, Louis, Duke of Brittany, who died in 1712, and Louis, Duke of Anjou, the future Louis XV. In 1710, his eldest (and favourite) surviving daughter Louise Élisabeth d'Orléans married her first cousin Charles, Duke of Berry; he was a son of the Dauphin and thus outranked Philippe and his wife; this meant that Louise Élisabeth took precedence over her parents.