There had been hopes of finding additional remains during Peers' archaeological investigations but, although the foundations of the original manor house were uncovered, few other items were discovered. The complete financial records of the castle's construction, however, were found in the archives of the Hastings family by the historian Thomas Fosbrooke while he was investigating Ashby by de la Zouch castle, who passed them to Peers; they have since provided what the historian John Goodall describes as "a fascinating insight" into medieval building operations.