William Rishanger (born 1250), nicknamed "Chronigraphus", was an English annalist and Benedictine monk of St Albans Abbey.[1] He probably wrote the Opus Chronicorum, a continuation from 1259 of Matthew Paris's Chronicle. In effect it is a history of his own times from 1259 to 1307, a spirited and trustworthy account, albeit in parts not original.[1] He also wrote a history of the reign of Edward I of England, and a work on the Barons' War; and was probably the continuator of Gesta Abbatum Monasterii Sancti Albani.[2]