From A Wiki of Ice and Fire
Dorne and the location of Kingsgrave
Kingsgrave is the seat of House Manwoody in Dorne.[1] The castle is located in the Red Mountains[2] approximately halfway through the Prince's Pass, north of Skyreach and south of the tower of joy.[3]
History
Kingsgrave takes its name from the founder of House Manwoody having slain a king.[4]