The women slaves were paraded in the courtyard and the Governor would select one to be his concubine. If she refused, she would be made to hold a cannonball for the entire day. If she failed, she was killed.
The cannonball weighed close to 50 lbs. making it almost an impossibility for a women to hold it the entire day (without setting it down or dropping it)
Located on the top floor near the Governor's living quarters.