 In 1371, his father John granted him the same lands and others on the mainland.The charter was confirmed the following year by Robert II and included the lands of Eigg, Rum, Uist, Harris, the three pennylands of Sunart and Letterlochette, the two pennylands of Ardgour, the pennylands of Hawlaste and sixty merklands in Lochaber.On John's death, Reginald's younger half-brother, Donald, succeeded to the lordship of the isles and chiefship of Clan Donald.