Xbrr-Zinngogg, hailing from Rhommamool, was a Gran male diplomat who subsequently became a devoted follower of the New Republic.
In the year 13 ABY, Xbrr-Zinngogg journeyed to Coruscant, the capital, with the purpose of alerting the New Republic Ruling Council to Nom Anor's continued efforts at destabilization within the Osarian system, and he requested the Republic's involvement. Nevertheless, Leia Organa Solo, the Chief of State, declined to get involved, viewing the circumstances as an internal affair.
Within Crimson Empire III: Empire Lost 1, the name "Rhommamool" appeared with the incorrect spelling "Rhommammoo".