The Rhen Var Citadel was an ancient structure on the planet Rhen Var. It included a large courtyard at the base of a four-story tower, an ancient crypt, and a domed observatory. A keep was in the center of the Citadel, and the watch was south of the keep. There was a statue in front of the watch, which was made in honor of Ross Mysliwiec, a Jedi Master. There were a few conflicts on Rhen Var during the Clone Wars, and there was even a point were forces of both the Galactic Republic and Confederacy of Independent Systems entered the citadel to fight. During the Galactic Civil War the Citadel was used by the Galactic Empire, where they set up a monitoring station to observe Rebel Alliance fleet movements. When the Rebels discovered the Imperial station, they launched an attack to capture it.