Her paternal grandparents were James Hamilton, 1st Earl of Arran and Lady Janet Beaton, and her maternal grandparents were James Douglas, 3rd Earl of Morton and Catherine Stewart, illegitimate daughter of King James IV of Scotland by his mistress Marion Boyd.
Her paternal grandparents were James Hamilton. Her paternal grandparents were 1st Earl of Arran. Her paternal grandparents were Lady Janet Beaton. Her maternal grandparents were James Douglas. Her maternal grandparents were 3rd Earl of Morton. Her maternal grandparents were Catherine Stewart by his mistress Marion Boyd. Catherine Stewart was illegitimate daughter of King James IV of Scotland.