Suddenly, on 31 May 1557, Morone was arrested by the Pope's nephew and Secretary of State personally. Pietro Carnesecchi, a former adherent of Morone, wrote: "Why Morone is imprisoned, no one knows; many say that the Cardinals have brought it about, in order that he may be out of their way at the next election of a Pope, when he would get the greatest number of votes. The Pope intends summoning all the Cardinals to Rome, that they as a college may judge Morone." There was an immediate outcry. The cardinals wanted a Congregation be held at which explanations would be demanded. Paul IV took the initiative and held a Congregation at which he presided, telling the cardinals that it was not politics but the honor of God that was involved. The process against Morone would be carried out by the members of the Inquisition. Twenty-one charges were levelled at him. On 12 June 1557, Morone was interrogated in the Castel S. Angelo by the committee: Cardinals Innocenzo del Monte, Jean Suau, Scipione Rebiba, Spoletano Farnese, and Michele Ghislieri. Having examined him and heard his extensive rejoinders, the committee reported in favor of Morone but Paul IV was not satisfied. Morone remained in the Castel S. Angelo until the death of Paul IV, when the College of Cardinals ordered his release. Cardinal Rebiba was sent as Nuncio to France, to discuss the matter of an alliance with Henri II.