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The evolution of medieval castles began with the decentralization of power in 9th-century Europe [], a consequence of warring nobles and Viking incursions that diminished royal authority. Kings began granting land, or fiefs, to lords in exchange for loyalty and military service, leading to the construction of early fortifications. These initial strongholds, often simple wooden structures, served as both a lord's residence and a projection of power within their territories, laying the groundwork for more complex defensive architecture [].
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The evolution of medieval castles began with the decentralization of power in 9th-century Europe [], a consequence of warring nobles and Viking incursions that diminished royal authority. Kings began granting land, or fiefs, to lords in exchange for loyalty and military service, leading to the construction of early fortifications. These initial strongholds, often simple wooden structures, served as both a lord's residence and a projection of power within their territories, laying the groundwork for more complex defensive architecture [].