According to the Royal Forums:
Prince Jean d’Orléans, the Duke of Vendome today celebrates his fiftieth birthday. He is the second son of Henri, Count of Paris, the Orléanist claimant to the defunct throne of France, and his first wife, Duchess Marie Thérèse of Württemberg.
Jean…married Philomena de Tornos y Steinhart on May 2, 2009. The couple has three children: Gaston, Antoinette and Louise-Marguerite.
In 2006, Jean was named as the Dauphin of France by his father, a title which is given to the heir to the French throne. This bypasses Jean’s elder brother, who is mentally disabled.
To read the entire article in the Royal Forums, please click here.