Lucullanum remained an important centre for several hundred years, long after the deaths of Romulus Augustulus and that of Eugippius. Pope Gregory the Great mentions it on a number of occasions as a place of some importance.
Its reputation continued to grow so much that by the eighth century it had become a place of pilgrimage. A Saxon pilgrim, the Wessex-born Saint Willibald visited it in 729 on the way back from the Holy Land.
It was not until the start of the tenth century, with the Saracen threat to Campania that the monastery began what was a terminal decline.
Nowadays it is called the Castel dell’Ovo and most of the massive fortress which stands on the islet of Borgo Marinaro dates to the seventeenth century. Little trace remains of the castle to which Romulus will have been exiled. There some minor traces of the ancient villa in the chapel and some Roman columns, obviously reused, stand in the refectory, but these are more accidental than useful. The Normans and then the Angevins, who occupied the site in the twelfth and thirteenth centuries respectively, rebuilt extensively, and then, like much of Italy, the castle was bombed and destroyed at the end of the fifteenth century. Thereafter, in swift succession it was occupied by the French and the Spanish, who rebuilt it as it looks today.