Prince Jean Duke of Guise Royalty
Jean Pierre Clément Marie d'Orléans, Duke of Guise (4 September 1874 – 25 August 1940), was the son of Robert, Duke of Chartres (1840–1910), grandson of Ferdinand-Philippe and great-grandson of Louis Philippe I, King of the French. His mother was Marie-Françoise d'Orléans, daughter of François, Prince of Joinville, and Francisca of Braganza, Princess of Brazil.
Personal facts
| Birth date | September 04, 1874 |
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| Date of death | August 25, 1940 |
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| Parents | Prince Robert Duke of Chartres Princess Françoise of Orléans (1844–1925) |
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| Title | Duke of Guise |