Qui a épousé Thomas (9e comte de Mar)?

Thomas de Mar (né vers 1330 – mort en 1377) noble écossais qui fut le 9^e comte de Mar de 1332 à 1377 et le dernier représentant de l'antique lignée des mormaers de Mar.

Margaret Stuart (morte avant le 23 mars 1418), noble écossaise de la maison Stuart qui fut comtesse héritière d'Angus de suo jure (1361-1389) et de Mar (1361-1374/1377) à la suite de son mariage.

Margaret Graham, Countess of Menteith (c. 1334 – c. 1376) was a Scottish noblewoman. She held the title Countess of Menteith in her own right, having inherited the title c. 1360 from her mother, Mary, Countess of Menteith, who was married to Sir John Graham. Graham was styled Earl of Menteith during his marriage with Mary, whom he predeceased. The Menteith region was situated partially in southwest Perthshire and partly in Stirlingshire.