Built on the orders of King João III (1502-1557), this room, which may have been a gallery, connected his chambers to the northwest wing of the palace. It is possible that his grandson, King Sebastião, would have come here to take a nap and converse with his masters.

The ceiling, which shows Portuguese, Imperial Ottoman and Dutch galleys, dates from the 17th century and may have been intended to remember an important event. However, its meaning is no longer known.