1. Newberry Library, VAULT Wing MS folio ZW 1 .301 DS ID: DS18000 Title: Legal document Author: John de Mowbray, 2nd Baron Mowbray Date: 13 April 1301
2. Newberry Library, VAULT folio Case MS 208 DS ID: DS18091 Title: Legal document Author: Luis Velasco Place: La Rioja Date: 1487