Frederica Mildmay, Countess of Mértola British countess (1687–1751) Parents Meinhardt Schomberg, 3rd Duke of Schomberg Karoline Elisabeth Raugräfin zu Pfalz Children Robert Darcy, 4th Earl of Holderness George Schomberg Darcy Lady Caroline Darcy Siblings Charles Schomberg, Marquess of Harwich Lady Caroline Schomberg Mary Schomberg Partners Robert Darcy, 3rd Earl of Holderness Benjamin Mildmay, 1st Earl FitzWalter
