The Castle was built before the 10th Century at the foot of the Mount Musiné and at the entrance of the Valle di Susa (Susa Valley). As fortification (curtis) of the Novalesa abbey, the castle with all its walls are witnesses of the history.

The first documents date back to the year one thousand and they confirm the abbatial belonging after a period of forsaking due to the Saracen forays. The foundations may possibly be much older. In the 18th Century, during the excavation of a canal close to the castle, an urn field was found, maybe belonging to a pre-Frankish site, as guard of the main road of the valley, and the first name of the castle, “Castrum Merletum”, reminds of a Roman military camp. 

The fortification dealed with the agricultural exploitation of a wide land around the castle, coordinating a probably not united territory up to the morainic hill of Rivoli. 

During the 17th Century the Benedictines from Novalesa entrust the Castle to the Cistercian monks (called Foglianti). They are responsible for the current sobriety of the architectural structure. 

At the beginning of the 18th Century the Castle passed to the ownership of the Ferrero Ponsiglione family, counts of Borgo d’Ale. The coat of arms in the main staircase is the memory of this noble family. 

The Castle was then ceded to the Consolata Missionaries, who turned it into a seminary and an artisan school. From the fifties it belongs to the Paschero family that with passion and enthusiasm dealed with its recovery. The long history of the castle, marked by long extension periods and destruction moments during many conflicts, explains the architectural stratification of the construction that makes this castle so original and interesting.