The MacDougalls opposed Robert the Bruce when he claimed the royal dignity of Scotland for himself, and attempted murder, in which, however, three members of their own clan were killed. The rivalry with the Bruces continued until Ewan, the 5th chief, married one of Bruce's granddaughters. Ewan left no sons, but two daughters, Janet and Isabel, and so their spouses, brothers Robert Stewart of Durrisdeer and John Stewart of Innermeath of Clan Stewart, took over the estates around the clan seat in Lorn. The new chief was Ewan's brother Alan, whose descendants bought back the lands of Dunollie in 1457 , where the clan's headquarters have been since then. For the participation in the First Jacobite revolt of 1715 on the Jacobite side, their property was confiscated; but after they had fought on the victorious side of the king in the Second Uprising in 1745, they got their land back. The clan's motto is Buaidh no bàs ("Victory or Death").
The thirty-first clan chief since 1990 is Morag Morley MacDougall of MacDougall and Dunollie.
Fergus DH Macdowall, William L. MacDougall (Eds.): The MacDowalls. Clan MacDougall Society of North America, Parkton 2009, ISBN 978-0-578-02679-4 .
Margaret Olympia Campbell: A memorial history of the Campbells of Melfort, Argyllshire, which includes records of the different highland and other families with whom they have intermarried. Simmons & Bottom, London 1882, pp. 50–55, with genealogical table ( archive.org ).
Alan Bold: Scottish tartans. Pitkin Pictorials, London 1978, ISBN 0-85372-245-5 , ( Pitkin "Pride of Britain" Books ).
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