The Casa dei Cavalieri di Rodi or House of the Knights of Rhodes that has its entrance in the small but lovely Grillo Square is quite hidden and not too well known. The Order was originally named the Knights of St John of Jerusalem and later the Knights of Malta. The front overlooking the square still has a 15th Century Crusader window while the others feature Roman structures, the first being a lovely trilobate balcony and the second has two cross windows. The Casa dates from the 12th Century but was embellished and restored in 1467-1470 by Cardinal Pietro Barbo.