In 1531,
Pope Clement VII awarded Vignanello as a
fief to Beatrice
Farnese. Her daughter, Ottavia, married Sforza Marescotti, and the Farnese
Pope Paul III confirmed the fief and elevated the couple to the first count and countess of Vignanello. The castle was built around 1574 as the seat of the count and countess, elaboration was attributed to
Jacopo Barozzi da Vignola. In the 17th century the Renaissance gardens were created by Ottavia
Orsini who had married into the family. The gardens still stand and are one of the best preserved examples of an Italian Renaissance garden.{{cite web The Ruspoli family was an influential Italian noble family with
close connections to the Holy See.
Francesco Maria Ruspoli, the 6th Count of Vignanello, was made the 1st Prince of Cerveteri, and the family has used the Princely title ever since. Many generations of the family lived at the castle in Vignanello, although the family had residences in
Rome and
Cerveteri as well. The castle continues to be in the possession of the Ruspoli family and serves as a private residence, but is open for visits and events.{{cite web ==See also==