This is the old Pacelli family summer villa located in the resort town of Santa Marinella, near Rome. It's a beach town northwest of Rome about 65 km and the villa, although not on the sea, is just a moments walk from a private beach, "Pirgus."
The villa was owned by the Pacelli family until just a few years ago. This summer the new owners completly restored the entire exterior. I went to the villa and met a current owner. He said it belonged to Pope Pius XII' sister and that now more than one family owns it. Amazing to think that the future Pope vacationed here and swam in these same waters.