Background
Frederica was the eldest surviving daughter of Meinhardt Schomberg, 3rd Duke of Schomberg and his second wife, Raugravine Karoline Elisabeth von der Pfalz, a daughter of Charles I Louis, Elector Palatine.
Frederica was the eldest surviving daughter of Meinhardt Schomberg, 3rd Duke of Schomberg and his second wife, Raugravine Karoline Elisabeth von der Pfalz, a daughter of Charles I Louis, Elector Palatine.
Honorary Robert Darcy (1718–1778). Later 4th Earl of Holderness. Lady Caroline Darcy (d 1778).
Married the 4th Marquess of Lothian.
On the death of the countess" father in 1719, she inherited his Portuguese countship of Mértola as his eldest surviving child. Benjamin Mildmay, who was later created Earl FitzWalter in 1730.
Her cognatic heir is Anthea Theresa Lycett (born Marcia Anne Miller), Countess of Mértola, eldest daughter of Diana, Baroness Conyers and Fauconberg and Countess of Mértola.