 Complete the following phrase:  During the first century of the British period, the square was used for military parades by the garrison and therefore known as the Parade or Grand Parade. In 1704, after the citys capture by an Anglo-Dutch fleet, the British converted the hospital and chapel of La Santa Misericordia into a debtors prison. In 1753, a survey of Gibraltar went on showing a prison at the western end of the square. After the 