gargoyles

A French legend that sprang up around the name of St. Romanus ("Romain") (AD 631–641), the former chancellor of the Merovingian King Clotaire II who was made Bishop of Rouen, relates how he delivered the country around Rouen from a monster called Gargouille or Goji. La Gargouille is said to have been the typical dragon with batlike wings, a long neck, and the ability to breathe fire from its mouth. There are multiple versions of the story, either that St. Romanus subdued the creature with a crucifix, or he captured the creature with the help of the only volunteer, a condemned man. In each, the monster is led back to Rouen and burned, but its head and neck would not burn due to being tempered by its own fire breath. The head was then mounted on the walls of the newly built church to scare off evil spirits, and used for protection. In commemoration of St. Romain, the Archbishops of Rouen were granted the right to set a prisoner free on the day that the reliquary of the saint was carried in procession.

These are technically not gargoyles as they don't function as water spouts. They are set into the wall of the foyer inside Newport's Dolman Theatre.