Oldtown is the second largest city in all of Westeros, located on the southern shore, near Dorne. It is home to the Citadel, where maesters are trained and given their chains.

Samwell Tarly of the Night's Watch is sent there in A Feast for Crows by Lord Commander Jon Snow, so that Sam can become the Wall's next maester. The prologue of A Feast for Crows is from the POV of Pate, a maester in training and resident of Oldtown.