The last Celtic owner of the Treverlen estates is said to have been Uviet the White who owned it from at least 1090 onwards. By 1128, though, at the founding of Holyrood Abbey, the lands of Arthur's Seat seem to have become divided between the Royal Demesne and the estates of Treverlen belonging to Uviet the White. For confirmation of what passed in 1128 at the forming of Holyrood Abbey and the passing of the lands to Kelso Abbey, we can look to the later Charter of Confirmation, Granted to the Monks of Kelso of King Malcolm IV. Malcolm IV of Scotland inherited the throne from his grandfather David I of Scotland, and was perhaps called upon to confirm many such gifts of land in case of later disputes. This he did, in the above-mentioned charter, confirming the previously given entitlement of