At last the time for the trial of Strafford came on, while Laud was in confinement. The interest felt in the trial was deep and universal. There were three kingdoms, as it were, combined against one man. Various measures were resorted to by the Commons to diminish the possibility that the accused should escape conviction. Some of them have since been thought to be unjust and cruel. For example, several persons who were strong friends of Strafford, and who, as was supposed, might offer testimony in his favor, were charged with treason and confined in prison until the trial was over. The Commons appointed thirteen persons to manage the prosecution. These persons were many months preparing the charges and the evidence, keeping their whole proceedings profoundly secret during all the time. At last the day approached, and Westminster Hall was fitted up and prepared to be the scene of the trial. [Sidenote: Arrangements at Westminster Hall.] Westminster Hall has the name of being the largest room whose roof is not supported by pillars in Europe. It stands in the region of the palaces and the Houses of Parliament at Westminster, and has been for seven centuries the scene of pageants and ceremonies without number. It is said that ten thousand persons have been accommodated in it at a banquet.[6] [6] It is two hundred and seventy feet long, seventy-five wide, and ninety high. [Illustration: WESTMINSTER HALL.] This great room was fitted up for the trial. Seats were provided for both houses of Parliament; for the Commons were to be present as accusers, and the Lords as the court. There was, as usual, a chair of state, or throne, for the king, as a matter of form. There was also a private gallery, screened from the observation of the spectators, where the king and queen could sit and witness the proceedings. They attended during the whole trial. [Sidenote: Charges.] [Sidenote: Imposing Scene.] [Sidenote: Strafford's able and eloquent defense.]