Roosita Thoroton Illegitimate daughter of the 3rd Duke of Rutland (1736–1823) Parents John Manners, 3rd Duke of Rutland Elizabeth Drake Children Thomas Thoroton Mary Manners-Sutton Siblings Edward Manners Lord Robert Manners-Sutton John Manners, Marquess of Granby Lord George Manners-Sutton Partners Thomas Thoroton