John Ponsonby, 4th Earl of Bessborough British politician (1781-1847) (1781–1847) Parents Henrietta Ponsonby, Countess of Bessborough Frederick Ponsonby, 3rd Earl of Bessborough Children Walter Ponsonby, 7th Earl of Bessborough Lady Kathleen Ponsonby Spencer Ponsonby-Fane Emily Ponsonby Lady Georgiana Ponsonby Gerald Ponsonby George Ponsonby Lady Augusta Ponsonby John Ponsonby, 5th Earl of Bessborough William Ponsonby Frederick Ponsonby, 6th Earl of Bessborough Lady Maria Ponsonby Siblings William Ponsonby, 1st Baron de Mauley Lady Caroline Lamb Frederick Cavendish Ponsonby Harriet Osborne, Baroness Godolphin George Arundel Stewart Partners Maria Fane
