The Norman Priory of Chepstow was founded between 1067 and 1071 by William fitzOsbern (cousin to William the Conqueror), Earl of Hereford, and was built at the same time as the Norman Keep of Chepstow Castle.
Benedictine monks were brought from the monastery at Cormeilles in Normandy, now Chepstow’ twin town. After the suppression of the priory in 1536 the Church suffered much destruction but the grandeur of the early Norman great Church can still be seen today in the vast three storey original nave.

The early Church was built in local yellow Triassic sandstone and its crowning glory is the great west entrance doorway, built in five richly decorated arches with zig zag and lozenge patterns.


The rest of the Church is a strange mixture of later restoration attempts following the collapse of the central tower in 1701.
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