Her Wikipedia article introduces her this way, "Doña María Josefa Alonso-Pimentel y Téllez-Girón, Duchess of Osuna, Grandee of Spain, suo jure 12th Countess-Duchess of Benavente, Grandee of Spain (26 November 1752 - 5 October 1834) was a Spanish aristocrat, famous for her patronage of artists, writers and scientists."