 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.