 Domhnall mac Raghnaill was a Hebridean noble in the late 12th- and early 13th @-@ century . He is the eponymous progenitor of Clan Donald ( Clann <unk> , " Children of Donald " ) . For this reason some traditions accumulated around him in the Later Middle Ages and Early Modern period . Despite his role as the historical figurehead of one of the world 's most famous kindreds and surnames , there is almost no contemporary evidence yielding certain information about his life . 
