William Ponsonby, 2nd Earl of Bessborough politician in Britain and Ireland (1704-1793) (1704–1793) Parents Sarah Margetson Brabazon Ponsonby, 1st Earl of Bessborough Children Catherine Beauclerk, Duchess of St Albans Frederick Ponsonby, 3rd Earl of Bessborough Lady Charlotte Ponsonby Siblings John Ponsonby Lady Letitia Ponsonby Lady Sarah Ponsonby Lady Anne Ponsonby Alicia Colville Partners Lady Caroline Cavendish
