Gunpowder Plot under King James had faded, leaving many English Catholics disappointed. His fellow plotters were John and Christopher Wright, Robert and Thomas Wintour, Thomas Percy, Guy Fawkes, Robert Keyes, Thomas Bates, John Grant, Ambrose Rookwood, Sir Everard Digby and Francis Tresham. Fawkes, who had 10 years of military experience fighting in the Spanish Netherlands in the failed suppression of the Dutch Revolt, was given charge of the explosives. The plot was revealed to the authorities in an anonymous letter sent to William Parker, 4th Baron Monteagle, on 26 October 1605. During a search of the House of Lords at about midnight
Ambrose Rookwood he rented Clopton House near Stratford, and moved there after Michaelmas. He took with him several Catholic religious symbols, such as chalices, crucifixes, vestments, Latin books and praying beads. These were concealed in a cellar built by the Jesuit Nicholas Owen. Toward the end of October he joined Keyes at his lodgings in London. A few days before the planned explosion he changed his mind about the sword he had ordered John Craddock to make, and had the cutler replace the grip with a gold one. The modified sword, which in total probably cost Rookwood more than £20, was delivered