Æthelred was a medieval

Bishop of Cornwall The Bishop of Cornwall was the bishop of a diocese which existed between about 930 and 1050. Nothing is known about bishops in the post-Roman British Kingdom of Cornwall, but by the mid-ninth century Wessex was gaining control over the area, and b ...

. Æthelred was bishop about 1001 and died sometime after that.Powicke ''Handbook of British Chronology'' p. 218

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References

* Powicke, F. Maurice and E. B. Fryde ''Handbook of British Chronology'' 2nd. ed. London:Royal Historical Society 1961 Bishops of Cornwall 11th-century English Roman Catholic bishops 10th-century births 11th-century deaths Year of birth unknown Year of death unknown {{England-bishop-stub