A map showing the location of Antlers on the continent of Westeros.
Antlers is a castle in the Crownlands, the region controlled directly by the Iron Throne in King's Landing. The castle is located north of King's Landing near the border with the Riverlands.[1][2]
In the books
In the A Song of Ice and Fire novels Antlers is the seat of House Buckwell.
See also
Antlers on A Wiki of Ice and Fire (spoilers from the books)
References
Template:The Crownlands