sentences:  The main castle courtyard, accessed through the southern gateway, was 120 feet long by 72 feet wide (37 m by 22 m), and was divided from the smaller northern yard by a three-office wing, built around 1716 and renovated in 1761 in a modern, 18th-century style.The office wing held the council room that was used for interrogating prisoners, the Bastille's library, and servants' quarters.The upper stories included rooms for the senior Bastille staff, and chambers for distinguished prisoners.