Lady Catherine Kennedy Peerage person ID=25732 (1637–1700) Parents Lady Jean Hamilton John Kennedy, 6th Earl of Cassilis Children Helen Cochrane Thomas Cochrane Alexander Cochrane Margaret Cochrane Jean Cochrane William Cochrane John Cochrane, 2nd Earl of Dundonald Siblings James Kennedy, Lord Kennedy Margaret Burnet John Kennedy, 7th Earl of Cassilis Partners William Cochrane, Lord Cochrane