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Regicide refers to both the act of killing a king and a person who commits this act. The term originates from the Latin words for "king" and "to kill". Historically, regicide has been a severe offense, often associated with treason. For instance, Thomas Harrison, who was instrumental in the beheading of King Charles I, was executed for his role in the king's death. This act, and others like it, carried extreme penalties in England, such as drawing and quartering.12

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