Lady Mary Fox
| Lady Mary Fox | |
|---|---|
| Lithograph of Lady Mary by Richard James Lane, published in March 1836 | |
| Born | 19 December 1798 Bushy House, Teddington, England | 
| Died | 13 July 1864 (aged 65) | 
| Buried | Kensal Green Cemetery | 
| Noble family | FitzClarence | 
| Spouse(s) | |
| Father | William IV | 
| Mother | Dorothea Jordan | 
| Occupation | Writer | 
Lady Mary Fox (née FitzClarence; 19 December 1798 – 13 July 1864) was an illegitimate daughter of King William IV of the United Kingdom by his mistress Dorothea Jordan. In later life she became a writer.