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The historical moment which spurred the creation of this piece was the regicide of King Charles I of England in 1649 and the reaction of the populace to his death , specifically the disrespect offered his body and memory by the Parliamentarians .
 King Charles I of England
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 King Charles I of England