He married Lady Margaret Campbell , daughter of Archibald Campbell , 2nd Earl of Argyll and Elizabeth Stuart .
John Erskine was the son of Robert Erskine , 4th Lord Erskine and Isabel Campbell .
John Erskine married Lady Margaret Campbell , daughter of Archibald Campbell , 2nd Earl of Argyll and Elizabeth Stuart .
John Erskine was the son of Robert Erskine , 4th Lord Erskine and Isabel Campbell .