RRW Deihu (Ha'apax class)

The was a Romulan Republican Force  advanced warbird in service in the 2400s, originally commanded by Commander Temer, then by Commander Nadel after Temer's death. She was the flagship of the Romulan Flotilla and later the Romulan Republic until the commissioning of the in late 2409. 

History
Commander Temer brought the survivors of an Tal Shiar/Elachi attack on Virinat to the Deihu in January 2409. 

Later that year the Deihu, now under the command of Commander Nadel, led a fleet of Republic and allied vessels against a Tal Shiar force, defending from the vessels. Afterwards Commander Charva was incarcerated in the Deihu's brig.