Question: 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?
Sentence (from "Domnall na Madhmann Mac Suibhne"): Domnall na Madhmann Mac Suibhne, Gallowglass, ancestor of the Mac Suibhne of north Connacht, Maghery Connacht, Clanricarde and Thomond, fl.
Relevant evidence: No