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St. John's Abbey was founded in the year 1095. Located in the town of Colchester, northeast of London, it was built by a layperson and only later came to be inhabited by a small group of Benedictine monks. There were often conflicts between the monastery and nearby town, right up to its dissolution in 1536. Most of the abbey was demolished to make room for a family manor. All that remains of the original structure is this impressive flushwork gatehouse from around the year 1400.

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