Clan Chorn was a group of Mandalorian warriors. They lived during the era when the Eternal Empire launched their assault on the galaxy. When Mandalore the Avenger called upon the Mandalorian clans to unite and strike at the Eternal Empire's droid manufacturing facility located on Darvannis, Clan Chorn was among those who answered the call and provided assistance.
The initial appearance of Clan Chorn in Star Wars Legends occurred within the game Star Wars: The Old Republic: Knights of the Fallen Empire. Specifically, the clan played a role in Chapter XIV, titled Mandalore's Revenge. During this chapter, players faced a decision: when Skytroopers managed to get behind Clan Chorn, the player had to choose whether to rescue them or allow them to be sacrificed.