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Edward Grim was a clerk from Cambridge who was visiting Canterbury Cathedral on Tuesday 29 December 1170 when Thomas Becket was murdered. He subsequently researched and published a book, Vita S. Thomae (Life of St. Thomas), published in about 1180, which is today known chiefly for a short section in which he gives an eyewitness account of the events in the Cathedral. He himself attempted to protect Becket, and nearly had his arm chopped off by one of the knight's sword.
- Stephen, Leslie; Lee, Sidney, eds. (1890). "Grim, Edward". Dictionary of National Biography. 23. London: Smith, Elder & Co.
- The relevant section from Life of Thomas Becket