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 "Lochranza Castle"): Most of the castle was built in the 16th century.
Relevant evidence: No