Lyric discussion by strawmanargument 

While I'd definitely agree that the song is more directly from the King Arthur legends, the verses

"The flower who married my brother the traitor. And you will expose his paltaple behavior, for you are the proof of how he betrayed her loyalty."

and

"My only son, each day you grow older, each moment I’m watching my vengeance unfold. The child of my body, the flesh of my soul, will die in returning the birthright he stole."

remind me strongly of Hamlet. Overall, a very mystical, entrancing song. Really intense.

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