Question: Haraldr Guðrøðarson ruled a kingdom that was located in what body of water?
Sentence (from "Haraldr Guðrøðarson"): Haraldr Guðrøðarson and his predecessors were members of the Crovan dynasty, and ruled an island-kingdom that encompassed the Mann and portions of the Hebrides, variously known as the Kingdom of the Isles or the Kingdom of Mann and the Isles.
Relevant evidence: Yes