Like the adjacent northern room, it is not known what specific functions this southern room on the second floor served in the early decades of Pavilion VII. Originally, this room could only be accessed through the triangular vestibule on the east side of the second floor of Pavilion VII, which also provides access to the second floor balcony facing the Lawn; today, there is a door on the west wall that leads to the modern stair hall. This room is now referred to as the Upstairs Library of the Colonnade Club and serves as a meeting space.