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Well, if to talk about what they used to gain energy the answer would be as simple as WOOD! To construct they would use wood/stone/mud. Castles were mainly biult on what purpose they served. If the castle is more of a few months stop then they were built out of wood. But if they were for defence from attackers they were mainly built out of stone. To get energy or simply to get heat wood or coal would be burned to keep villagfers hut warm

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14y ago

What else can I help you with?