Castle of Millesimo, Medieval castle in Millesimo, Italy.

The Castle of Millesimo is a medieval fortress built on elevated ground in Savona province, constructed from stone with visible towers and defensive walls. The building displays typical northern Italian fortification features, designed to control the valley below from its commanding position.

The oldest parts of the castle, the tower, the keep and the east wall, date to the second half of the 13th century, after the Del Carretto domains were divided in 1268 into the marquisates of Finale, Millesimo and Novello. The marquises Del Carretto di Millesimo held it, leaning first on Asti and from 1393 on the marquises of Monferrato. In 1447 it hosted the meeting of the Del Carretto branches deciding strategy against Genoa, and in 1553 the imperial commissioner Gerolamo Sacco di Ceva had it dismantled on the order of Ferrante I Gonzaga, governor of Milan. French and Austro-Piedmontese armies damaged it further in 1796.

The fortress served as a family seat for generations and shaped the village's sense of place. Residents today connect this stronghold to their local roots and the protection it once provided to the community.

The fortress sits at the upper end of the village and is accessed via the Salita al Castello street. It is worth the steep walk on foot to experience the view over the valley from its hilltop position.

The castle was bought by the municipal administration in 1989 and later restored; it now hosts classical music concerts and exhibitions. Its oldest parts, the tower, the keep and the east wall, date to the second half of the 13th century.