Dubhghall mac Suibhne was a prominent 13th-century noble, the Earl of Menteith also obtained Lochranza Castle, an L-plan tower house situated on a promontory in Lochranza, on the north of the Isle of Arran, in which country?
Dubhghall mac Suibhne:  The Earl of Menteith also obtained Skipness Castle, Castle Sween and Lochranza Castle formerly controlled by Dubhghall.
i don't know