6. Seach (Gaelic for Shaw) MacDuff, (died 1179). Commander of the army of King Malcolm IV, which quelled the Insurrection of Moray 1161. Called Macan-Toi-sic (son of the chief or foremost) which became the sirname of the family. Founder and first chief of Clan MacIntosh. Married Giles, daughter of Hugh de Montgomery and had ...