Mac Dubhghaill
Mac DUBHGHAILL—IV—M'Doole, M'Doell, M'Doile, MacDool, MacDowall, MacDowell, MacDugal, MacDougall, MacDugald, MacDougald, MacDole, Madole, Doole, Dowell, Dougall, Dugald, &c.; 'son of Dubhghall' (the black-stranger, a name given by the Irish to the Danes); the name of a Scoto-Irish family of the same stock as the MacDonalds, being descended from Somhairle, thane of Argyle (slain 1165), who was the common ancestor of both families. The MacDugalds were lords of Lorne in Scotland. Some of them, like the MacDonalds, came over to Ireland, in the 14th and 15th centuries, as captains of gallowglasses, and settled in Co. Roscommon and other parts of the west and north of Ireland. See Mac Dhubhghaill.
Alphabetical Index to Irish Surnames