Iseabail Ní Mheic Cailéin Gaelic noblewoman, poet Parents Colin Campbell, 1st Earl of Argyll Isabel Stewart Children Walter Drummond Andrew Drummond, of Ballyclone Siblings Lady Mary Campbell Lady Elizabeth Campbell Archibald Campbell, 2nd Earl of Argyll Lady Catherine Campbell Thomas Campbell Helen Campbell John Campbell Lady Margaret Campbell Partners William Drummond, Master of Drummond