Wood mainly. Just an outer wall with an entrance and a small fort inside. This type of castle would have been called a motte and bailey castle. Motte and bailey castles were later replaced by concentric castles made out of stone.
Castles were built out of stones or bricks.
Castles were built out of stones or bricks.
Castles were first built in 1066, this was mainly due to the battle of hastings
built as protection for invaders
William the Conqueror built the first wooden ones but kings after him also built their own castles.
motte and bailey castles were the first castles built by william and later stone castles came around they were first rectangular but then were made circular which was better defence. e.t.c. ;-)
Normady
they were built when facebook was was built lol
wood and stones
Normady
Medieval castles were built for protection and not for comfort. The first castles were built using wood but, were found to burn easily. Stone was then used in replacement of wood.
Germany