In 2365, famed mediator Riva chose to hold negotiations with the Solari in a central location of the region where the Battle of Zambrano was fought. (TNG: "Loud As A Whisper" ) The battle was not referenced in dialogue, but rather appeared on an okudagram that Data and Riva were reviewing while attempting to select a negotiation site on the planets surface. The battle was named after episode writer Jacqueline Zambrano. (Star Trek Encyclopedia (3rd ed., p. 574) )