She is generally said to have been a Galbraith, and heiress of Killearn, Bamore, and Auchenreoch. However, some researchers identify her as a Cunningham.

Chiefs of Clan Buchanan

• 11th – Sir Walter Buchanan,[69][70] (Guthrie Smith identifies him as 5th Chief and Buchanan of Auchmar identifies him as 11th Chief) married Margaret and had three sons (Walter his successor, Alexander who reputedly killed the Duke of Clarence at the battle of Beaugé in 1421 and who later died in the battle of Verneuil in 1424, and John [Buchanan of Auchmar identifies him as 12th Chief ] who married Janet the heiress of Leny and was the first ancestor of the cadets of Leny) and two daughters (Elizabeth and Jean).
• 12th – Sir Walter Buchanan,[71][72] (Guthrie Smith identifies him as 6th Chief and Buchanan of Auchmar identifies him as 13th Chief) first married an unidentified women and by her three sons (Patrick his successor, Walter and Thomas first ancestor of cadets of Gartincaber,[73] Drumikill and Carbeth) and one daughter. He married secondly to Isobel Stewart.
• 13th – Patrick Buchanan,[74][75] (Guthrie Smith identifies him as 7th Chief and Buchanan of Auchmar identifies him as 14th Chief) married Jonet Cunningham of Galbraith and by her a son (Walter his successor) and a daughter (Anabella). He also had an illegitimate son (Patrick).
• 14th – Walter Buchanan,[75][76] (Guthrie Smith identifies him as 8th Chief and Buchanan of Auchmar identifies him as 15th Chief) married Isobel Graham and by her four sons (Patrick [Guthrie Smith identifies him as 9th Chief but then goes on to advise that the Chiefship passed from Patrick’s father to Patrick’s son[77]and Buchanan of Auchmar identifies him as 16th Chief[76] ] who married the daughter of the Earl of Argyle and by her had George who succeeded his grandfather; John first ancestor of cadets of Arnprior; Maurice; and Walter first ancestor of cadets of Spittal) and two daughters (Margaret and Elizabeth).
• 15th – George Buchanan,[76][77] (Guthrie Smith identifies him as 10th Chief and Buchanan of Auchmar identifies him as 17th Chief) succeed his grandfather, Walter 14th of Buchanan, in 1526 and died 1560. He first married Margaret Edmonstone and by her a son (John [Guthrie Smith identifies him as 11th Chief but then goes on to advise that the Chiefship passed from John’s father to John’s son[78] and Buchanan of Auchmar identifies him as 18th Chief[79 who married Elizabeth Livingston and by her had George[79] who succeeded his grandfather) and two daughters (Helen and Susanna). Second he married Janet Cunningham and by her had a son (William first ancestor of the cadets of Auchmar) and a daughter (Margaret).
• 16th – Sir George Buchanan,[78][79] (Guthrie Smith identifies him as 12th Chief and Buchanan of Auchmar identifies him as 19th Chief) succeed his grandfather, George 15th of Buchanan, in 1561, married Lady Mary Graham and by her one son (John his successor) and two daughters (Helen and Susanna). http://en.wikipedia.org/wiki/Clan_Buchanan