They should've definitely used king Arthur or a medieval knight as

King Arthur: Knights Tale Review

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When Arthur was wounded in battle and close to death, he gave his sword to one of his knights. What did he tell the knight to do with the sword? - Quora

They should've definitely used king Arthur or a medieval knight as one of the humans : r/ShuumatsuNoValkyrie

King Arthur and His Knights of the Round Table by Roger Lancelyn Green

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Now, from the producer of PEARL HARBOR and the director of TRAINING DAY . . . experience the extended unrated director's cut of this hard-hitting

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Young King Arthur And The Round Table Knights (King Arthur Series Book 1) - Kindle edition by Aisling, Cara. Download it once and read it on your

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21 Magical Books About King Arthur, Camelot, and the Knights of the Round Table - TCK Publishing

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Feudalism in Europe, Japan & China, Overview & Comparison - Video & Lesson Transcript