They were a group of pirates dedicated to overthrowing the Redguard monarchy.
Little is yet known about them, except that they appeared in The Elder Scrolls Adventures: Redguard, and were mentioned in Pocket Guide to the Empire, First Edition: Hammerfell 
After Hammerfell got conqeured by the Empire, the Restless League was commit guilty of several acts by Imperial Law. These acts are piracy, sedition and treason. Which made them subject to summary execution.
- ↑ Pocket Guide to the Empire, First Edition: Hammerfell
- ↑ Dialogue with Amiel Richton