In the 16th C. Cardinal Flavio Orsini had it reconstructed and its is to him that it owes its name.

 

The Torre Flavia, which at the time was on the mainland, was part of a system of watchtowers that stretched down the entire coast and which included the Castle of Paolo, the Saracen Tower of Santa Severa, the Odescalchi Castle Tower in S. Marinella; it was used as a watchtower right up to the beginning of the 19th C. when it was still equipped with two 12 and 13 calibre cannons and 3 rifles with bayonets.