House of Borgia
After the House of Borgia, over the centuries, Forte Sangallo first passes to the Colonna family, then to the Apostolic Camera and from the nineteenth century to the Borghese family. In 1931, the fort belonged to baron Alberto Fassini. Among its guests Forte Sangallo also hosted Queen Marie of Romania and Princess Ileana of Romania, in 1931. In 1997, Forte Sangallo was acquired by Nettuno Council.