William, Lord of Ross, was a Scottish nobleman who lived during the 13th century. He held the title of Lord of Ross, a region in northern Scotland, which was significant during the medieval period. His lineage is linked to the Clan Ross, a prominent Scottish clan known for its influence in the Highlands. William played a role in the political landscape of Scotland, particularly during the Wars of Scottish Independence. He was involved in various conflicts and alliances, contributing to the struggle for Scottish autonomy against English rule. His legacy is tied to the broader history of Scotland during this tumultuous era.