William Ponsonby, 1st Baron de Mauley

British politician (1787-1855) (1787–1855)

Parents

• Henrietta Ponsonby, Countess of Bessborough
• Frederick Ponsonby, 3rd Earl of Bessborough

Children

• Charles Ponsonby, 2nd Baron de Mauley
• Frances Anne Georgina Ponsonby
• Ashley Ponsonby

Siblings

• John Ponsonby, 4th Earl of Bessborough
• Lady Caroline Lamb
• Frederick Cavendish Ponsonby
• George Arundel Stewart
• Harriet Osborne, Baroness Godolphin

Partners

• Lady Barbara Ashley-Cooper