Francis Osborne, 5th Duke of Leeds British politician (1751-1799) (1751–1799) Parents Mary Osborne, Duchess of Leeds Thomas Osborne, 4th Duke of Leeds Children Lord Sidney Osborne Francis Osborne, 1st Baron Godolphin Mary Pelham, Countess of Chichester George Osborne, 6th Duke of Leeds Catherine Osborne Partners Catherine Osborne, Duchess of Leeds Amelia Osborne, Marchioness of Carmarthen