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
Robert and Thomas Wintour in Gloucestershire, and his wife Catherine, daughter of Sir George Throckmorton of Coughton in Warwickshire. As scions of the Throckmortons, they could therefore claim a kinship with plotters like Robert Catesby and Francis Tresham. Their maternal uncle Francis Ingleby, a Catholic priest, was hanged, drawn and quartered at York in 1586, a fact which in the opinion of historian and author Antonia Fraser, "could hardly have failed to leave a stark impression upon the Wintour family." The Wintours took their name from the Welsh Gwyn Tour (White Tower). 'Wyntour' was sometimes used in signatures, but not 'Winter' (as the brothers