The ChR Revoth was a Romulan warship in service during the 2260s.
In 2267, the Revoth was patrolling an area near the Neutral Zone when it detected the USS Lexington on the Romulan side and immediately gave chase. Once it caught up the commanders of the two ships talked and the Lexington was allowed to continue across the Neutral Zone. (ST novella: The First Peer)