Me thinks you have picked up the wrong clue. The Normans were so called because they came from Normandy.
If you are trying to suggest that Napoleon wasn't French I'd have to disagree.
Err, history records that the French at the Battle of Hastings were in retreat having failed to overcome the English who held the higher and dryer ground.
On seeing the French retreating the English made the mistake of chasing them in an attempt to properly finish them off.
The English then...