Beodricesworth was an Anglo-Saxon town on which Bury St Edmunds would be built. Its monastery was where the relics of Edmund the Martyr were stored [1] and the monastery would later become Bury St Edmunds Abbey.
Pinner, Rebecca (2015). The Cult of St Edmund in Medieval East Anglia (Hardcover). Woodbridge: Boydell Press. p. 276. ISBN 9781783270354.