Question: Which principality did the man, after which Ranier III Nautical Stadium is named, rule?
Sentence (from "Principality of Volhynia"): The Principality of Volhynia was a western Kievan Rus' principality founded by the Rurik dynasty in 987 centered in the region of Volhynia, straddling the borders of modern-day Poland, Ukraine and Belarus.
Relevant evidence: No