Oakenshield (Wall)
From A Wiki of Ice and Fire
Oakenshield is an abandoned castle along the Wall belonging to the Night's Watch. It lies immediately east of Castle Black. To the west is Woodswatch-by-the-Pool.[1]
Oakenshield is also the name of one of the four islands that make up the Shield Islands. It is unknown if the two are related in any way.
Recent Events
A Dance with Dragons
Jon Snow re-garrisons Oakenshield as the seat of Tormund.