Margaret Rockefeller Strong de Larraín, Marquesa de Cuevas

Margaret Rockefeller Strong Cuevas (1897-1985) was an American activist.

Cuevas was the daughter of Elizabeth Rockefeller Strong (1866–1906) and her husband Dr. Charles Augustus Strong (1862–1940). Her maternal grandfather was Standard Oil co-founder John D. Rockefeller (1839–1937). She married Jorge Cuevas Bartholín, a Chilean ballet businessman around 1929; they had two children. After his death, she married Raymundo de Larraín Valdés (1935-1988) in 1977.

Cuevas saved a row of Neo-Federal townhouses on Park Avenue designed by McKim, Mead & White from destruction by purchasing the property and giving one of the townhouses to the Queen Sofía Spanish Institute in 1965. She then donated the corner townhouse to her cousin, David Rockefeller, who founded the Center for Inter-American Relations there. In December 1979, Margaret donated her father's estate, Villa Le Balze in Fiesole, Tuscany, Italy to Georgetown University which operates an overseas campus there.

The Marques de Cuevas's life can be read at "El Inútil de la Familia", book written by Jorge Edwards, a Chilean writer.

Children

• Elisabeth Strong Cuevas
• John de Cuevas