Anx Minor was the site of a massacre that took place during the Galactic Civil War. Approximately around 5 ABY, this tragic event was one of several incidents examined by New Republic Intelligence agent Caern Adan and Alphabet Squadron pilot Yrica Quell. This examination was part of their search for the Galactic Empire's 204th Imperial Fighter Wing after New Republic Intelligence identified it as a potential 204th operation. She felt that the Anx Minor massacre bore resemblances to the fighter wing's raid on Beauchen, however, its location was far removed from other potential sightings of the 204th on the map they were using.
The location Anx Minor was first referenced within canon during the 2020 novel Shadow Fall, which was penned by Alexander Freed. In Star Wars Legends, the name Anx Minor initially appeared in the reference book titled The New Essential Guide to Characters, authored by Daniel Wallace and released in 2002.