English Heritage, "Castle Rising Castle", English Heritage, hentet 29. november 2013; Lynn Museum, "Castle Rising Castle", Norfolk Museums and Archaeology Service, s. 4, arkiveret fra originalen 3. december 2013, hentet 29. november 2013
norfolk.gov.uk
museums.norfolk.gov.uk
English Heritage, "Castle Rising Castle", English Heritage, hentet 29. november 2013; Lynn Museum, "Castle Rising Castle", Norfolk Museums and Archaeology Service, s. 4, arkiveret fra originalen 3. december 2013, hentet 29. november 2013
web.archive.org
English Heritage, "Castle Rising Castle", English Heritage, hentet 29. november 2013; Lynn Museum, "Castle Rising Castle", Norfolk Museums and Archaeology Service, s. 4, arkiveret fra originalen 3. december 2013, hentet 29. november 2013