Ashemark

Ashemark is a stronghold in Game of Thrones. It the seat of House Marbrand, a noble house sworn to House Lannister of Casterly Rock. It is located close to where the Tumblestone river begins, southeast of the Crag and northeasr of Casterly Rock.

In the books
In the Song of Ice and Fire novels, Ashemark is the seat of House Marbrand.