John of Glastonbury (fl. c. 1340) was a Benedictine monk[1] and chronicler.[2] His full name may have been John Seen.[3]
In the mid fourteenth century John wrote the Cronica Sive Antiquitates Glastoniensis Ecclesie (Chronicles or Antiquities of the Glastonbury Church) which is a chronicle of Glastonbury Abbey, from when it was founded, up to the period of John's life. The Cronica survives as a full text over seven manuscripts.[4] The Cronica refers to the Arthurian legends several times, and John drew extensively on De Antiquitate Glastonie Ecclesie by William of Malmesbury.[5]