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 are commonly named). A faithful Catholic, Robert was married to Gertrude Talbot, daughter of the recusant John Talbot of Grafton. He inherited the Tudor Huddington Court near Worcester, along with a significant fortune with which he was known to be generous. Under Robert, Huddington Court became a known refuge for priests. The proclamation for his capture, issued following the plot's failure, described him as "a man of mean stature, and rather low than otherwise; square made, somewhat stooping; near 40 years of age; his hair and beard brown; his beard not much, and his hair short." The Jesuit John Gerard