Isabel Stewart Peerage person ID=109257 (1437–1510) Parents Agnes MacDonald John Stewart, 2nd Lord Lorn Children Archibald Campbell, 2nd Earl of Argyll Helen Campbell Lady Elizabeth Campbell Iseabail Ní Mheic Cailéin Lady Mary Campbell Lady Catherine Campbell Lady Margaret Campbell Thomas Campbell Siblings Janet Stewart Marion Stewart Dugald Stewart, 1st of Appin Partners Colin Campbell, 1st Earl of Argyll