"…Fergus de Galweia…Uchtred filio Fergus" witnessed a charter dated to [1136] by which "David Rex Scotiæ" granted Perdeyc to the church of Glasqow. "Uhctredus filius Fergusi" donated "ecclesiam de Colmanele" to Holyrood abbey by undated charter. "Uctredus filius Fergi et Gunnild filia Waldef sponsa sua" donated "ecclesiam de Torpennoth" to Holyrood abbey by undated charter. Malcolm IV King of Scotland with "Uhtred filio Fergi et Gilebto fratris eius et Rad filio Dunegal et Duuenaldo fratris eius" confirmed the donation of "terra de Dunroden" to Holyrood abbey by undated charter. "...Huctred son of Fergus, Gilebert son of Fergus..." witnessed the charter dated to [1166] under which William King of Scotland confirmed the grant of property to “Robert de Brus”. William of Newburgh names "duo fratres Gilbertus et Uctredus Galwadensis provinciæ dofuini…Fergusi olim principis eiusdem provincie filii" when recording their quarrels [in 1174] and that Uhtred was killed.
Lord of Galloway. John of Fordun’s Scotichronicon (Continuator) records that, in the year in which King William was released from custody, "duce Gilberto filio Fergusii" led "Galwidienses" in rebellion and "X Kal Oct" captured "Ochtredus…filius Fergusii…verus…Scotus", blinded him, cut out his tongue, and murdered him. 1