The partially collapsed Keep,wrongly titled "The Roman Tower" by Lady Anne Clifford,because she thought it was built by the Romans. see http://www.castlefacts.info/contentpages/castledetails/castledetails.asp?country=England&countyid=43&county=Westmorland&castleid=3961&latitude=54.521598815918&longitude=-2.32290005683899&uin=10347 see http://en.wikipedia.org/wiki/Brough_Castle see http://www.roman-britain.org/places/verteris.htm