Skip to main content


Eardwulf (d. c.810), king of Northumbria (796–c.810). Before his accession Eardwulf was an ealdorman and it is not known whether he was of royal descent. He became king at a particularly disturbed period in Northumbrian politics and within four years of his accession had defeated an attempted coup and had two rivals murdered. He attacked Cenwulf of Mercia in 801 for harbouring his enemies. In 806 or 808 he was forced into exile, but soon returned with help provided by the Frankish king Charles the Great; however, not long afterwards he was succeeded by his son Eanred. Subsequently Eardwulf was venerated as St Hardulf and his remains housed at the Mercian monastery of Breedon- on-the-Hill. His claim to sanctity apparently related to an event in 791 where he was left for dead outside the monastery of Ripon on the orders of King Æthelred, but made what was regarded as a miraculous recovery.

Barbara Yorke

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Eardwulf." The Oxford Companion to British History. . 24 Feb. 2019 <>.

"Eardwulf." The Oxford Companion to British History. . (February 24, 2019).

"Eardwulf." The Oxford Companion to British History. . Retrieved February 24, 2019 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.