On 9 April 1345, Edward III granted Gilbert de Whitley a licence to crenellate his manor house at Whitley. To crenellate a house was to place battlements on it. Before this could be done, the sanction of the Crown was often sought. Although battlements were often largely symbolic, in this instance it is probably an indication of the degree of insecurity felt even this far south during the Edwardian wars with Scotland. The licence and crenellations were an indication of status. Only 2% of the small tower houses of the sort Gilbert built had licences. The 'sanction' of the crown was a sought-after bonus, but not a requirement.