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In Roman times there was already a small settlement by the name of Ceula on the hills.
This constituted an important nodal point due to its location.
At the beginning of the 9th century, the bell tower of the present church, the Chiesa di San Siro, served as a watchtower and as a defence against dangers from the sea.
From the 13th century, however, the importance of the area began to decline – this to the advantage of Levanto itself, which was expanding by the sea.