At some point by 4 ABY, the dark side mercenaries known as the Knights of Ren were hired on a no-questions-asked assignment to raid the prison and free its occupants. As there were no specific restrictions in the assignment, the knights also raided the hangars of the prison's security forces and stole one of the prison transports, the Oubliette-class vessel Night Buzzard. The group then modified the starship for personal use, removing any livery of the Osseriton correctional facilities.
In the current Star Wars canon, Osseriton was first mentioned in the 2019 reference book Star Wars: The Rise of Skywalker: The Visual Dictionary, which was written by Pablo Hidalgo. In the Star Wars Legends continuity, Osseriton was first mentioned in Force Heretic II: Refugee, the second novel in the Force Heretic trilogy and sixteenth overall in the Star Wars: The New Jedi Order series. The novel was released in 2003 and written by Sean Williams and Shane Dix.
In the current Star Wars canon, Osseriton was first mentioned in the 2019 reference book Star Wars: The Rise of Skywalker: The Visual Dictionary, which was written by Pablo Hidalgo. In the Star Wars Legends continuity, Osseriton was first mentioned in Force Heretic II: Refugee, the second novel in the Force Heretic trilogy and sixteenth overall in the Star Wars: The New Jedi Order series. The novel was released in 2003 and written by Sean Williams and Shane Dix.
- Star Wars: The Rise of Skywalker: The Visual Dictionary
- Star Wars Complete Vehicles, New Edition
- Star Wars Galaxy Map