 James, moreover, arranged a marriage between Lachlan Maclean, captain of the MacLeans of Duart, an important vassal kindred of the Lordship of the Isles, to Mar's daughter, bringing Mar's influence into the Lordship of the Isles itself.In 1431 Aonghas de Moravia was sent on a campaign against Aonghas Dubh MacAoidh in Strathnaver.However the main campaign was in Lochaber, where Mar hoped to make his status as Lord of Lochaber a reality.