Courtsilius was one of the five planets that orbited the sun of the Hosnian system, in the Core region of the galaxy. Like its star and the other planets in the system, it was destroyed by the First Order in 34 ABY.
- Galaxy's Edge: Black Spire (Indirect mention only)
- Star Wars Super Graphic: A Visual Guide to a Galaxy Far, Far Away (First mentioned)
- Star Wars: On the Front Lines (Indirect mention only)