Mary Osborne, Duchess of Leeds British noble (1723–1764) Parents Francis Godolphin, 2nd Earl of Godolphin Henrietta Churchill, 2nd Duchess of Marlborough William Congreve Children Francis Osborne, 5th Duke of Leeds Siblings William Godolphin, Marquess of Blandford Harriet Pelham-Holles, Duchess of Newcastle-upon-Tyne Lady Margaret Godolphin Hary Godolphin Partners Thomas Osborne, 4th Duke of Leeds
