Donna Marina Torlonia (October 22, 1916-September 15, 1960), was born in Rome, the youngest daughter of Prince Don Marino Torlonia, 4th Prince di Civitella-Cessi and Elsie Moore. Her brother was Don Alessandro Torlonia, 5th Prince di Civitella-Cessi, the husband of the spanish Infanta Doña Beatriz de Borbón-Battenberg (the aunt of the actual King Juan Carlos I of Spain)

The Torlonia family was one of the richiest roman families of the nineteenth century, gaining their fortune from the administration of the finances of the Vatican during the 19th Century.

Her first husband was Eduard Slater, her second was Francis Xavier Shields, a United States American professional tennis player. They met in Rome during a championship tennis.

With Francis Xavier Shields she had two children: Francis Alexander Shields, and Marina Shields. Her eldest grand daugther is the actress Brooke Shields.