Debrune

The Debrune were a Vulcanoid race who were one of the many species that developed as a result of the Romulan Diaspora. 

When the Romulan's early ancestors departed the Vulcan homeworld, they went on an exodus to find a new planet to call home. After passing many planets, a dissident movement formed which was led by Admiral Debrune who made colonies on several of the planets the fleet had passed but these only lasted for several centuries during the 4th century.

Planets such as Barradas III and Calder II were two such planets settled by the Debrune.