 Two years later, as the queen's health waned, a nervous government ensured that John and Christopher were again imprisoned, the English antiquarian William Camden describing them as men "hunger-starved for innovation".Christopher may have travelled to Spain in 1603 using the alias Anthony Dutton, seeking Spanish support for English Catholics, although biographer Mark Nicholls mentions that Dutton's role may have been attributed to Christopher by Fawkes and Thomas Wintour, held in the Tower of London after the failure of the plot.Early in 1604 Robert Catesby, a Catholic convert who had lost patience with King James I's lack of toleration of Catholics, invited his cousin Thomas Wintour to a meeting at which John was also present.