IRW Keras

The IRW Keras was a Romulan warbird involved in recovering the remains of a stolen torpedo prototype in 2339.

During the attempt to return to Romulan space, radiation from the torpedo prototype killed the crew of the Keras' sistership, the IRW Kimara, stranding it in Federation space near the Paulson Nebula. When it became clear both the Kimara and the prototype torpedo were unrecoverable, the Keras destroyed the Kimara before returning to Romulan space on its own.

The Keras was named for a Romulan commander that dueled against the starship USS Enterprise (NCC-1701) in 2266 as part of an unsuccessful prelude to invasion. (Memory-Beta)

Appearances
That Which Is Unknown