Bandit Lords

The Bandit Lords were a group of outlaws who led the bandits in the Dornish Marshes.

Background
The Bandit Lords abducted the lord and lady of House Dondarrion, who were held hostage at a place called Diamond Cave. They were all killed by Ser Arthur Dayne, a member of the Kingsguard of Aerys II Targaryen, after being taunted by him into combat. Arthur later rescued Lord Dondarrion and his wife from the bandits.

Season 8
The Bandit Lords are mentioned in Arthur Dayne's entry in ''The Book of Brothers', which the new Lord Commander of the Kingsguard Brienne of Tarth was flicking through..

In the books
In the A Song of Ice and Fire novels, there is no mention of this group.