 <unk> had set in and the roof of the eastern limb collapsed during a gale on 4 December 1637 . In 1640 the General Assembly ordered Gilbert Ross , the minister of St Giles <unk> , to remove the <unk> screen which still partitioned the choir and presbytery from the nave . Ross was assisted in this by the <unk> of <unk> and <unk> who <unk> it up for <unk> . It is believed that the destruction of the great west window was caused by Oliver Cromwell 's soldiers sometime between 1650 and 1660 . 
