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
Gunpowder Plot he and Wintour discovered that the gunpowder stored in the undercroft had decayed. More gunpowder was brought into the room, along with firewood to conceal it. The final three conspirators were recruited in late 1605. At Michaelmas, Catesby persuaded the staunchly Catholic Ambrose Rookwood to rent Clopton House near Stratford-upon-Avon. Rookwood was a young man with recusant connections, whose stable of horses at Coldham Hall in Stanningfield, Suffolk was an important factor in his enlistment. His parents, Robert Rookwood and Dorothea Drury, were wealthy landowners, and had educated their son at a Jesuit school near Calais. Everard Digby was a