In the Carolingian age it became the residence of a count; later, having passed to the Marquesses of Susa, Manfred I, son of Marquess Bonifacio del Vasto, on the division of that principality became Marquess of Saluzzo; this family held the marquisate of Saluzzo from 1142 to 1548. The marquisate embraced the territory lying between the Alps, the Po and the Stura, and was extended on several occasions. In the Middle Ages it had a chequered existence, often being in conflict with powerful neighbours, chiefly the Counts (later Dukes) of Savoy.