The Counts of Montferrat were a noble family that ruled over the region of Montferrat in northwestern Italy during the Middle Ages. Their lineage began in the 10th century and played a significant role in the political landscape of the time, often engaging in alliances and conflicts with neighboring states. The most notable member of the family was William VI, who became the first Marquis of Montferrat in the 12th century. The counts were influential in the Crusades, contributing troops and resources, and their legacy includes the establishment of several important cities and fortifications in the region.