See also Cappoquin on Wikipedia, Caperquin on Wiktionary, and the Encyclopædia Britannica, 1st edition, disclaimer. It is actually located at 52° 9′ N., 7° 51′ W.

CAPERQUIN, a town of Ireland, in the county of Waterford, and province of Munster, situated on the river Blackwater: W. long. 7° 50′, N. lat. 52° 5′.