The observer Sir Edward Hoby remarked "Since Johnson's being in the Tower, he beginneth to speak English". Fawkes revealed his true identity on 7 November, and told his interrogators that there were five people involved in the plot to kill the King. He began to reveal their names on 8 November, and told how they intended to place Princess Elizabeth on the throne. His third confession, on 9 November, implicated Francis Tresham. Following the Ridolfi plot of 1571, prisoners were made to dictate their confessions, before copying and signing them, if they still could. Although it is uncertain if he was tortured on the rack, Fawkes's scrawled signature suggests the suffering he endured at the hands of his interrogators.