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| Prince Robert | |
|---|---|
| Duke of Chartres | |
 Prince Robert, c. 1900 | |
| Born | Robert Philippe Louis Eugène Ferdinand 9 November 1840 Paris, France |
| Died | 5 December 1910 (aged 70) Saint Firmin, France |
| Spouse | |
| Issue | Marie, Princess Valdemar of Denmark Prince Robert Prince Henri Princess Marguerite, Duchess of Magenta Prince Jean, Duke of Guise |
| House | Orléans |
| Father | Prince Ferdinand Philippe, Duke of Orléans |
| Mother | Duchess Helene of Mecklenburg-Schwerin |
| Signature |  |
| Military career | |
| Battles / wars | Wars of Italian Unification, American Civil War, Franco-Prussian War |
Prince Robert, Duke of Chartres (Robert Philippe Louis Eugène Ferdinand; 9 November 1840 – 5 December 1910), was the son of Prince Ferdinand Philippe, Duke of Orléans, and thus a grandson of King Louis-Philippe of France. He fought for the Union in the American Civil War, and then for France in the 1870 Franco-Prussian War. In 1863, he married his cousin Princess Françoise of Orléans, the daughter of François, Prince of Joinville. In 1886, he was exiled from France.