Uilleam III, Earl of Ross (William, 6th Earl) died without male issue. The earldom of Ross and the chiefship of Clan Ross were then separated. The chiefship of the Clan Ross passed to Earl William's brother Hugh Ross of Rariches (1st of Balnagown), who was granted a charter, in 1374, for the lands of Balnagowan. The earldom of Ross passed through a female line, and that later led to dispute between two rival claimants—the Lord of the Isles and the Duke of Albany. This resulted in the Battle of Harlaw in 1411 where the Clan Ross fought as Highlanders in support of the Lord of the Isles against an army of Scottish Lowlanders who supported the Duke of Albany.