The Battle of Hastings
Along with the Bayeux Tapestry there are many accounts of what actually happened and why.
Contrary to popular belief the battle was not just the story of the invasion of England by WIlliam the Conqueror and the death of Harold but the story leading up to the battle.
One of the best accounts that I have read regarding the build-up to the Battle of 1066 is David Micheal's Unruly.
Companions of William
There seems to be a competition to have a connection to an individual that accompanied William the Conqueror in his invasion of England in 1066. Whether this is due to the notion that if your family was associated with the Norman invasion force you are one of the "elite".
There are many Anglo-Norman families that are associated with Normandy in the 11th and 12th centuries, some of which feature in English history. A family to which this applies is the family of de Vere.
Wadad