When was Motte and Bailey castles built?
From about 1066 until the invention of the stone castle.
Motte and Bailey castles were built in the 11th century just after the battle of Hastings in 1066. Motte and Bailey's main advantages are that they were cheap and light enabling them to be built easier. Motte and Bailey castles were later replaced by Stone Keep castles which were, despite being heavier and more expensive, were better in more other ways.
To replace Motte and bailey castles. Motte and Bailey castles were wood castles built on a man made mound of earth (motte) with a section around the motte for the staff to live in (the bailey). Motte and bailey castles were only temporary and they were quick to build. They weren't very good in defence because they could burn - they were made of wood. Stone keep castles took months, maybe even years, to build…
Motte and Bailey castles were replaced by shell keeps and square towers. They were also replaced by concentric castles. The concentric castles were originally Motte and Bailey castles, but only some of the Motte and Baileys got to become them. Some of the first Motte and Bailey castles to be turned into concentric castles are Rochester castle and Warwick castle. They were cool