Prince Jean, Duke of Guise Prince Jean, Duke of Guise Prince Jean of Orléans, Duke of Guise (Jean Pierre Clément Marie; 4 September 1874 – 25 August 1940), was the son of Prince Robert, Duke of Chartres (1840–1910), grandson of Prince Ferdinand Philippe and great-grandson of Louis Philippe I, King of the French. His mother was Françoise of Orléans, daughter of François, Prince of Joinville, and Princess Francisca of Brazil. Upon the death of his cousin and brother-in-law Philippe, Duke of Orléans, claimant to the throne of France as "Philip VIII", the Duke of Guise became, at least for his Orleanist and Unionist supporters, titular
Prince Philip, Duke of Edinburgh claimed that the Queen and the Duke were drifting apart, which enraged the Duke and dismayed the Queen, who issued a strongly worded denial. On 22 February 1957, she granted her husband the style and title of a Prince of the United Kingdom by Letters Patent, and it was gazetted that he was to be known as "His Royal Highness The Prince Philip, Duke of Edinburgh". Philip was appointed to the Queen's Privy Council for Canada on 14 October 1957, taking his Oath of Allegiance before the Queen in person at her Canadian residence, Rideau Hall. Remarks he made two