Catherine Beauclerk, Duchess of St Albans
The Duchess of St Albans  | |
|---|---|
| Born | Lady Catherine Ponsonby 14 October 1742  | 
| Died | 4 September 1789 (aged 46) | 
| Noble family | Ponsonby (by birth) Beauclerk (by marriage)  | 
| Spouse(s) | |
| Issue | 
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| Father | William Ponsonby, 2nd Earl of Bessborough | 
| Mother | Lady Caroline Cavendish | 
Catherine Beauclerk, Duchess of St Albans (née Lady Catherine Ponsonby; 14 October 1742 – 4 September 1789) was a British noblewoman. She was Duchess of St Albans through her marriage.