Note 338 — MEMOIRS OF THE REBELLION IN 1745 AND 1746, SO FAR AS IT CONCERNED THE COUNTIES OF ABERDEEN AND BANFF
Reading edition
Mary (Hay), Countess of Erroll in her own right, the last of the Hays of Erroll. She married Alexander Falconer, but left no issue. On her death in 1758, she was succeeded in the Errol title by James (Boyd), Lord Boyd (son of the Earl of Kilmarnock, executed in 1746), whose mother was the daughter and sole heiress of Lady Erroll’s sister Margaret, wife of the attainted Earl of Linlithgow and Callander. He assumed the name of Hay.