Lady Henrietta Douglas (died 1673) (1633–1673) Parents Lady Mary Gordon William Douglas, 1st Marquess of Douglas Children John Johnstone George Johnstone Henrietta Johnstone Lady Mary Johnstone William Johnstone, 1st Marquess of Annandale Margaret Johnstone James Johnstone, Lord Johnstone Siblings Lady Catherine Douglas Lady Lucy Douglas Lady Isabel Douglas George Douglas, 1st Earl of Dumbarton Lady Jean Douglas William Hamilton, 3rd Duke of Hamilton Lady Jean Douglas Lady Margaret Douglas Lady Grizel Douglas Archibald Douglas, 1st Earl of Ormond Lord James Douglas Lady Grissell Douglas