The Old Chapel is a Keeper's base under Our Lady of the Iron Litany Chapel (The Chapel) in Mourningside in Stonemarket. It is the home of the Queen of Beggars. The room is decorated with Keeper statues.
- The Keeper's Chapel was a location in Thief: The Dark Project/Thief Gold but the term only appears in DromEd.
- The Location referred to as the The Old Chapel only appears on the entrance which leads to a cutscene, showing the area underneath (but is not explorable in game).
- The outside area is known simply as The Chapel or Our Lady of the Iron Litany Chapel.