My aunt's husband, José Calvo-Sotelo, descends on his mother's side from Therese von Mecklenburg-Strelitz, niece of George III's Queen. You can trace her ancestry back to Edward III, and probably some other English kings. So he has his share of Plantagenet blood!
José Pedro Calvo-Sotelo Olry de Labry (1948), son of
Jacqueline Olry de Labry (1921-2000), daughter of
Germaine de Fontenilliat (1880-1980), daughter of
Philippe Alexandre Paul de Fontenilliat (1853-1933), son of
Marie Helene von Krüdener (1828-?), daughter of
Amalie von Sternfeld (1808-1888), illegitimate daughter of
Therese Mathilde von Mecklenburg-Strelitz (1773.1839)