The CIF Fourth Jroone was a Confederacy of the Worlds of the First Quadrant starship in Confederacy Interstellar Fleet service in the late 24th century. In the 2380s decade, the Jroone was under the command of Overseer Racha Bralt. (VOY novel: Acts of Contrition)
In January of the year 2382, the Fourth Jroone was assigned by CIF to lead the Federation starship USS Demeter on a tour of the Confederacy's agricultural planets. Travelling through the streams, Overseer Balt showed the crew of Demeter the productive world Femra. Commander Liam O'Donnell of the Demeter, an agricultural expert, was unimpressed and convinced Bralt of providing a tour of another world, Vitrum.