Fieschi Castle, Medieval castle in Montoggio, Italy.

Fieschi Castle is a medieval fortress in Montoggio, Italy, located on elevated ground with defensive walls, towers, and chambers arranged according to medieval building principles. The structure displays typical features of a fortified noble residence with spaces designed for both habitation and defense.

The Fieschi family held the castle as a stronghold in the 15th and 16th centuries. In July 1546 Gianluigi Fieschi had its walls widened to 15 feet and new bastions added ahead of his conspiracy. After the plot failed in 1547, Gerolamo Fieschi held out there until the Republic of Genoa had the castle demolished with explosives.

The name Fieschi comes from the Genoese family that held the castle as a stronghold in the 15th and 16th centuries. After 1547 the site was left as a rubble plateau covered by vegetation, and today only these overgrown ruins on the hill above Montoggio remain visible.

The site is located on a hillside and can be reached via footpaths starting from Montoggio. Visitors should expect uneven terrain and limited facilities, so sturdy footwear and careful navigation are advisable.

The ruins offer panoramic views across surrounding valleys and forests, revealing why the Fieschi family chose this elevated position for regional control. The landscape visible from the site demonstrates the strategic advantage it once provided.