Mary Bertie, Duchess of Ancaster and Kesteven Mistress of the Robes to Queen Charlotte from 1761 (1730–1793) Children unknown daughter Bertie Robert Bertie, 4th Duke of Ancaster and Kesteven Georgina Cholmondeley, Marchioness of Cholmondeley Peregrine Thomas Bertie, Marquess of Lindsey Priscilla Bertie, 21st Baroness Willoughby de Eresby Partners Peregrine Bertie, 3rd Duke of Ancaster and Kesteven
