Rocca di Verrua Savoia, Medieval fortress in Verrua Savoia, Italy.

Rocca di Verrua Savoia is a fortress perched on a strategic hilltop overlooking the Po River, featuring defensive walls, towers, and a network of underground passages. The structure displays the typical layout of a medieval stronghold with a central keep and interconnected defensive rooms.

The first written mention of the fortress dates to the 10th century when Emperor Otto III of Saxony noted its existence under the control of Vercelli bishops. Over subsequent centuries, it remained a significant defensive position protecting the region.

The saying "Quand che 'l ver pijrrà cost'ua, 'l marcheis dal Monfrà 'l pijrrà Vrua" (when the pig takes the grapes, the Marquis of Montferrat will take Verrua) dates from the failed Monferrat sieges of 1379 and 1387. The fortress church was dedicated to Saint John the Baptist, patron of the village, and the site is now managed by the Fondazione Eugenio Piazza Verrua Celeberrima.

The site was partly restored in 2010-2011 and can now be visited on guided tours; the only surviving structures are the keep (dongione) with its adjoining buildings and the Ponte del Soccorso. The hill stands above the Po, on the border between the provinces of Turin and Vercelli, and the single original gate, the Porta del Soccorso, opened onto the road linking the fort to the plain.

During the War of Spanish Succession in 1704, the fortress endured a prolonged 200-day siege, proving the strength of its construction and military importance. This extended siege stands as testimony to how effectively the structure resisted intense attack.