Tiaru Jarok

Tiaru Jarok was the only daughter of Admiral Alidar Jarok, who defected to the Federation for his ideals but committed suicide in 2366. Captain Jean-Luc Picard delivered Jarok's letter to his wife and daughter in 2374. At that time, Tiaru was 10-12 years old. (SS TNG (Suicide Note))

By 2409, Tiaru Jarok held the rank of commander and had defected from the Romulan Star Navy to join the Romulan Republic. She became the captain of the first Republican flagship, the dreadnought warbird RRW). Jarok was present at the ceremony to open the New Romulus gateway, which ended in disaster. She survived and commanded the Lleiset during the battle to defend the Jouret gateway from an Elachi fleet. When she demanded to know where that Iconian gateway had suddenly come from, Ambassador Worf explained it came from subspace and had been activated to save New Romulus from tectonic damage caused by the New Romulan gateway's activation.

(SS TNG (Suicide Note))