Tradition (and tourism) have long held that Battle Abbey was the site of the famous Battle of Hastings. However, while as many as 10,000 men may have died there, no bodies or major artifacts have been found. Historian John Grehan thinks that the battle may really have taken place in Caldbec Hill, a mile away.
Grenhan thinks that geographic features and distances in contemporary documents match more closely with Caldbec than with Battle Abbey. He has identified a ditch at the base of the hill that he thinks may be a mass grave.
Others note that Battle Abbey, built 50 years after the battle, is supposedly built on the location of the battle, and that the builders went to great effort to make the land suitable for the Abbey.