Traces of pre-Roman, Roman and Byzantine presences in the site have been excavated in the past centuries, and are now on display in Savona's Archaeological Museum.
[1] The fortress was built in 1542 by the Republic of Genoa on a promontory where in medieval times was the nucleus of Savona, by design of architect Giovanni Maria Olgiati [it].
In order to create space for the new structures, edifices of the medieval Savona, including the cathedral Santa Maria di Castello (built in the 9th century over a pagan temple), were demolished.
During the Risorgimento, Italian patriot Giuseppe Mazzini was jailed in the Priamar Fortress.
[2] In January 2023, the front entrance portal was closed because of wall stones falling down.