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However , the story is highly fictionalised , and the castle itself , which is never directly referred to in " Macbeth " , was built many years after the life of the 11th - century King Macbeth .
 Macbeth, Macbeth
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Macbeth, Macbeth