A great landmark at the confluence of the rivers Stour and Avon. Originally founded on the site in the 8th century as a monastery, at that time called by the Anglo-Saxons Tweon-ea and subsequently Thuinam by the Normans in the Domesday Survey. At that time it was in the administrative area of Southampton. The name of Holy Trinity was superseded by Christchurch in the twelfth century.
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