Also Known As:<_AKA> na /Cochall-Craichenn/ Known as Muircheartach of the Leather Coats and Hector of the Western World. He was recognized by his distinctive long yellow hair. The nickname was associated with a leather jacket he invented that served as armor for his warriors. Muircheartach turned the tide of Viking invaders extending the defense of Ireland into Viking territory in Scotland. He died in battle against Blacar (King of Dublin), having spent his entire adult life in combat.