| Isabel of Cambridge | |
|---|---|
| Countess of Essex | |
| Born | 1409 |
| Died | 2 October 1484 (aged 74–75) |
| Burial | |
| Spouses | Sir Thomas Grey Henry Bourchier, 1st Earl of Essex |
| Issue | Thomas Grey William Bourchier, Viscount Bourchier Sir Henry Bourchier Humphrey Bourchier, 1st Baron Cromwell John Bourchier Sir Thomas Bourchier Edward Bourchier Fulk Bourchier Isabel Bourchier |
| House | York |
| Father | Richard, 3rd Earl of Cambridge |
| Mother | Anne de Mortimer |
| English Royalty |
| House of York |
|---|
 |
| Richard of Conisburgh, 3rd Earl of Cambridge |
Isabel of Cambridge, Countess of Essex (1409 – 2 October 1484) was the only daughter of Richard, 3rd Earl of Cambridge, and Anne de Mortimer. She was the sister of Richard Plantagenet, 3rd Duke of York, and like him a great-grandchild of Edward III of England.