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Robert de Vere | |
|---|---|
| Earl of Oxford | |
 Robert de Vere, 9th Earl of Oxford, fleeing Radcot Bridge, 1387, taken from the Gruthuse manuscript of Froissart's Chroniques (circa 1475) | |
| Born | 16 January 1362 |
| Died | 22 November 1392 (aged 30) Louvain |
| Spouse(s) | |
| Father | Thomas de Vere, 8th Earl of Oxford |
| Mother | Maud de Ufford |
Robert de Vere, 9th Earl of Oxford, KG (16 January 1362 – 22 November 1392) was a favourite and court companion of King Richard II of England. He was the ninth Earl of Oxford and the first Duke of Ireland and the only Marquess of Dublin. He was also the first person to be created a Marquess.