Margaret, Countess of Lennox was the daughter of Domhnall, Earl of Lennox, who died in about 1364.Maitland Club, Cartularium comitatus de Levenax ab initio seculi decimi tertii usque ad annum MCCCXCVIII, p.xii She married Walter de Fasselane, a cousin, who also descended from previous Earls of Lennox.
Margaret and Walter's children were: Donnchadh, Earl of Lennox Alexander Alan Walter
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