The Lady De L'Isle and Dudley | |
|---|---|
 Lady De L'Isle and Dudley in 1832, by Andrew Morton | |
| Born | Sophia FitzClarence 25 August 1796 Somerset Street, London, England |
| Died | 10 April 1837 (aged 40) Kensington Palace, London, England |
| Noble family | FitzClarence |
| Spouse(s) | |
| Issue | Adelaide Sidney Ernestine Sidney Sophia Sidney Philip Sidney, 2nd Baron De L'Isle and Dudley |
| Father | William IV |
| Mother | Dorothea Jordan |
| Occupation | State Housekeeper |
Sophia Sidney, Baroness De L'Isle and Dudley (née FitzClarence; 25 August 1796 – 10 April 1837) was the eldest illegitimate daughter of William IV of the United Kingdom and his longtime mistress Dorothea Jordan. She was married to Philip Sidney, 1st Baron De L'Isle and Dudley, and had four surviving children. Shortly before her death in 1837, she served as State Housekeeper in Kensington Palace.