Hornvale

Hornvale is a castle in Game of Thrones. It is a holdfast in the Westerlands, the region controlled by House Lannister of Casterly Rock. The castle is located in the centre of the region, among the mountains east of Casterly Rock. It is south of Golden Tooth.

In the books
In the Song of Ice and Fire novels Hornvale is the seat of House Brax. Its location is the same.