John Balliol
Blackfriars, the Dominican friary, was founded at "Friarland" north of the mouth of the Bladnoch, south-east of the town of Wigtown, by Devorgilla, half-sister of Thomas McDowell of Garthland Stoneykirk in 1267 Clan Macdowall. Dervorgilla married John Balliol, 5th Baron de Balliol and was mother of King John Balliol. Thomas McDowell claimed the Kingdom of Galloway and may have been in custody at "Friarland" in later life.