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In page George Plantagenet, Duke of Clarence:

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According to the bill of attainder passed against him, Clarence made a number of his servants swear personal loyalty to him and sent them into various parts of the kingdom to stir up rebellion against Edward, claiming that Edward intended to disinherit him and that he had used witchcraft to poison his subjects. It was also alleged that he had plotted to have a "strange child" pose as his son, while he intended to send his own son into Ireland or Flanders to get assistance against Edward, but this plan was not successful. Clarence was also said to have secretly kept a document signed by Henry VI, specifying that Clarence was to become king in the event of his death.[citation needed]