I would say catapults also cannons
castles, improved weapons and armour, farming techniques - better animal breeds, crop growing etc
Superior skill, organisation and weapons - and force of numbers. Don't forget that the Normans came in at the request of an Irishman - to help him get his kingdom in Leinster back, so it wasn't just "Normans - v - Irish", it was really a local quarrel in which one side hired foreign mercenaries, who then outstayed their welcome and got so powerful that Henry had to invade to slap them down again.
Why did the Normans panic
what were the normans hobbies
What food did The Normans grow?
Only one of them can be normans.
One leader's of the Normans was Rolo
What did the Normans do after The Battle of Hastings?
The Norman soldiers had 9 foot spears, kite shaped shields with leather around it, 6 foot dane axes, swords 28 to 32 inches long, falchions, maces, and daggers.
If you mean personal weapons that is difficult.The main difference between the Norman and Saxon armies was the use of cavalry.Saxons used their horses to get to the battle where they would mainly fight on foot.Normans used the stirrup which enabled them to use the horse as a shock weapon with a lance or sword.After The Battle of Hastings any English or Danish armies would try not to engage the Normans on open ground where they could use their cavalry which such effect.
Normans Hall was created in 1921.