|The title of this article is conjecture based on information revealed in the A Song of Ice and Fire novels and may be subject to change.
- "What is this place?
Somewhere neither wolves nor lions come prowling."
- ―Gendry and Thoros
The Hollow Hill is a sprawling underground complex of caves and tunnels located somewhere in the Riverlands. It is adopted by the Brotherhood Without Banners, and used as their base of operations during the War of the Five Kings.
Arya, Gendry, and Sandor Clegane are taken to the Hollow Hill, following the latter's capture by the Brotherhood Without Banners. There, the trio are introduced to the Brotherhood's commander: Lord Beric Dondarrion, who sentences Clegane to trial by combat.
In the books
In the A Song of Ice and Fire novels, the Hollow Hill also serves as the headquarters of the Brotherhood Without Banners. For this reason, some members of the Brotherhood refer to themselves as "the Knights of Hollow Hill."