Robert and Thomas Wintour is written about the Gunpowder Plot is derived from Thomas's confession, signed on 23 November 1605; details of the so-called Spanish Treason were added three days later. One of only two confessions printed in the "King's Book" (a highly partial contemporary account of the affair), Thomas Wintour's was the only account the government had of a plotter who had been involved from the beginning; Guy Fawkes, weakened by days of torture, may have been at the heart of the group, but he was not at its first meetings. However, Antonia Fraser views the document with suspicion, not least because Thomas's
Ambrose Rookwood Although unverifiable, his wife's relationship to Robert Keyes may mean that Rookwood already suspected that something was being planned. He was at first concerned for the welfare of the Catholic lords who would be present at the explosion, but his compunction was alleviated when Catesby promised him that they would be tricked out of attending Parliament that day. Any lingering doubts Rookwood had were removed by Catesby's lie that the Jesuits had given the scheme their approval. Rookwood had stayed with the Wintours at Huddington Court, and that month with the Catholic Lacons at Kinlet Hall, but at Cateby's behest