Yes, they did a lot of building in Ireland.
No
The normans of course
The Normans built their castles shortly after the battle of Hastings's. this was from 1066 onwards
how did the hopewell build there houses
they build wood houses
They built churches and castles and stuff like that
They built it there so then it can be safe.
Because the normans built castles because soldiers were safe as they had an advantage of height as the castle was built on a motte.
The Normans were the first to build motte and bailey castles. Their first castle built was at Mont Glonme on the river Loire in France, 990.
to put it simply yes.
No. The great stone castles were build by the Normans.