In his book 'The McDonnell & the Norman De Borgos', Archibald McSparran tells the story of the marriage of Finvola of the O'Cahans to Angus McDonnell, son of the Lord of the Isles His account is possibly from old stories, or even wholly made up, as Rev. George Hill in his 'McDonnells of Antrim' gives the lady's name as Áine, or perhaps Margaret, and states that she outlived her husband by several years and came back to Ireland as a widow.