Sir John Johnstone of that Ilk (died 1587) (1544–1587) Parents Margaret Hamilton James Johnstone of Johnstone, younger Children Margaret Johnstone Sir James Johnstone of Johnstone Sara Johnstone Elizabeth Johnstone Grizell Johnstone Siblings Margaret Douglas, Countess of Bothwell Janet Johnstone Archibald Douglas, 8th Earl of Angus Lady Elizabeth Douglas Partners Margaret Scott