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Earliest Designs

Motte and bailey castles’ principal design feature was, of course, defence and to this end, its greatest attribute, height. It was the Vikings of northern Europe, during the latter part of the first millenium, who were amongst the earliest warriors to apply this edge to their castle building. They were able to erect towering castles not only upon high ground but also in places offering no such natural advantage.

Hill Forts

Defenders throughout the ages have long known of the benefits of holding fort from above. More often than not their strongholds were sited upon hill or cliff tops. Consider Edinburgh Rock where there has been a fortress since the dark ages. Or Hadrian’s Wall or the Antonine Wall both of which follow the contours of the high ground, forts along the way most often placed at high points. Or earlier, by definition, the hill-forts of the iron-age that were strategically located upon naturally elevated land. Remnants of Maiden Castle in Dorset provide possibly one of the finest examples.

Motte and Bailey

Such advantage was not always naturally available. Often the location of a settlement provided little in the way of raised terrain. Similar to hill-forts, though predominantly man-made, the Vikings began to construct their castle and buildings upon great mounds of earthworks, the motte. This they enclosed within a heavily fenced and fortified bailey.

Normans

Credit should not be attributed solely to those dark-age northerners though. As they forced their terror upon the hapless victims of Britain and Southern Europe they also brought with them their culture. It was the combination of the feudal system in France with many hundreds of powerful barons and lords fighting to keep control of their individual lands, often by way of large personal armies, the naturally flat plains of that part of the continent and the influx of the invading Vikings that necessitated the need for greater defences and, in particular, the further development of the new-found structures of the motte and bailey castle.

It could be said it was the Norman’s who finessed this art of castle building, the construction of such often regarded in terms of art. A castle was not to be considered purely in terms of its functionality. Indeed, some of the earliest records of motte and bailey type castles are to be found on the famous Bayeux Tapestry; castles at Bayeux, Dol, Rennes and Dinan each feature.

A portion of the Bayeux Tapestry featuring a representation of Dinan Castle and its motte
Functionality

Functionality was key to the safekeeping of those inside. The construction of ditches and moats and the subsequent development of the motte presented a formidale challenge to opposing armies. Climbing the steep banks just to be met by a tall fence or pele with likely menacing objects or substances being dropped and thrown from above was hardly appealing. If indeed an army could mount such an assault after the bank had been properly soaked.

Arrows from afar were next to useless when attacking a motte and bailey. Simply put, from the higher vantage return fire had a greater range. However, the fight was rarely one-sided. Trebuchets and mangonels, great catapults, could present serious problems to the defenders, especially those firing flamed projectiles towards the often wooden castle and buildings. And fire wasn’t the greatest fear of the occupants of the motte and bailey castle, or for that matter, forts and castles from any period. Siege was an enduring worry for those within. At least, a large bailey would allow plenty room for storehouses.

British Motte and Bailey Castles

It was primarily William the Conqueror, following his invasion of 1066, who introduced the motte and bailey castle to the British Isles though evidence of earlier Norman examples can be found at the sites of Hereford Castle and Richard’s Castle, near Ludlow, close the welsh border. During his subsequent reign it is thought 100 or more motte and bailey castles were erected throughout the land. Some fine examples can be seen from Google’s arial map views of Castle Acre Castle and Castle Rising Castle, both in Norfolk, Berkhamsted Castle in Hertfordshire, Duffus Castle in Scotland and, probably most famous of all, Windsor Castle in Berkshire.

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