In 1815 , the original gables in the first quadrangle were removed .
In 1815 , the original gables in the first quadrangle were replaced with a third storey and battlements , matching the lodgings where battlements had been erected between 1733 and 1740 .
In 1815 , the original gables in the first quadrangle were removed and replaced with a third storey and battlements , matching the lodgings where battlements had been erected between 1733 and 1740 .