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
Duke of Edinburgh-class cruiser two more were added to "Duke of Edinburgh" on the forecastle. The ship's foremast was converted to a tripod mast to support the weight of the fire-control director probably added in 1917. "Duke of Edinburgh" and "Black Prince" served in the Channel, Atlantic and Home Fleets before World War I. They were stationed in the Mediterranean when World War I began and participated in the pursuit of the "Goeben" and "Breslau" as part of the 1st Cruiser Squadron, but was ordered not to engage. After the German ships reached Ottoman waters, the ships were sent to the Red Sea in