Frederick Ponsonby, 3rd Earl of Bessborough British peer (1758-1844) (1758–1844) Parents Lady Caroline Cavendish William Ponsonby, 2nd Earl of Bessborough Children Frederick Cavendish Ponsonby William Ponsonby, 1st Baron de Mauley Lady Caroline Lamb John Ponsonby, 4th Earl of Bessborough Siblings Lady Charlotte Ponsonby Catherine Beauclerk, Duchess of St Albans Partners Henrietta Ponsonby, Countess of Bessborough
