can you give one example of the tactics used by either of the troops?
The English soldiers formed up as a shield wall along the ridge and were at first so effective that William's army was thrown back with heavy casualties.
William the Conqueror
The English soldiers formed up as a shield wall along the ridge and were at first so effective that William's army was thrown back with heavy casualties. 
who is reginald de warenne? He was an Anglo-Norman nobleman and royal official. what royal service was he a part of? He was a royal justice. can you name some of his family members? Son of William de Warenne and Isabel de Vermandois. did any of them had royal title? William de Warenne, the second earl of Surrey. what can you tell about this rank? It is a title in the Peerage of England that has been created five times. It was first created for William de Warenne, a close companion of William the Conqueror. can you name some of these earls? No. where was the conqueror that you mentioned born? Falaise, a Duchy of Normandy. which place was he reigning? England. did any battle take place during his reign? Yes, the Battle of Hastings. who won this battle? William The Conqueror.
wiki:19645093
William the Conqueror [SEP] Battle of Hastings
William ordered that the body was to be thrown into the sea, but whether that took place is unclear. Waltham Abbey, which had been founded by Harold, later claimed that his body had been secretly buried there.