Blackcrown

Blackcrown is a castle in Game of Thrones. It is a holdfast in the Reach, the region controlled by House Tyrell of Highgarden. The castle is located south west of Highgarden and south west of Oldtown. It is on the northern side of the estuary of the river that flows past Oldtown and into the Redwyne Straits.

In the books
In the Song of Ice and Fire novels Blackcrown is the seat of House Bulwer. Its location is the same and the river is known as the Sound, with the estuary called the Whispering Sound.