Round shields were popular in the early middle ages. By the time of the Norman Conquest, both knights and common soldiers used kite shields. The kite shield gave more protection for the legs. By the thirteenth-century, armor improved and shields became triangular.
Shields weighed between five and ten pounds. They were usually made of wood and covered with leather. Sometimes they had metal rims. Celts and Vikings generally used round shields with a center metal boss to deflect blows.
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