How many motte and baliuy castles are they?

Motte-and-bailey castles were a prevalent form of fortification during the Middle Ages, particularly in Europe and the Near East. While it's challenging to determine the exact number of motte-and-bailey castles that existed, researchers and historians estimate that there may have been at least several thousand constructed throughout different regions.

Motte-and-bailey castles were commonly built by feudal lords and knights during the 10th to 13th centuries. They consisted of a raised mound (motte) surrounded by a protective ditch and palisade, and an enclosed courtyard (bailey) where living quarters, workshops, and other structures were located. These castles served as defensive structures, administrative centers, and residences for the local lords and their retinues.

One notable concentration of motte-and-bailey castles can be found in the British Isles, where more than 1,000 such structures have been identified and documented. England alone has an estimated 5,500 sites of motte-and-bailey castles, although many have been lost or are barely visible today due to erosion, landscaping, and urban development.

France is another region with a significant number of motte-and-bailey castles. It's estimated that there may have been as many as 50,000 mottes constructed in various regions of France during the medieval period. However, many of these structures have been destroyed or significantly modified over time.

In other parts of Europe, including Germany, Italy, and Eastern Europe, motte-and-bailey castles were also prevalent, but their numbers may be harder to quantify due to varying historical documentation and definitions.

It's important to note that the exact numbers may vary based on different definitions and criteria used to identify motte-and-bailey castles. Archaeologists and historians continuously conduct surveys and reassess the landscape to better understand the extent of these medieval fortifications.

Overall, the presence of several thousand motte-and-bailey castles across Europe and the Near East testifies to their importance in medieval society as defensive structures and symbols of power and authority.