All this affords ample proof that the avoidance of irregularity was the only motive that actuated the Inquisition in this matter, but if further evidence is required it is furnished by the fact that still greater scruple existed in the exercise of the temporal jurisdiction acquired by the Spanish Holy Office over all matters concerning its officials, because such cases were not provided for in the commissions of the inquisitors-general, from which were delegated the powers of the tribunals. In 1514 the question arose when Micer Castillo, assessor in the Saragossa tribunal, was murdered, and two of his assassins, Joan Uguet and Pere Gasco, were tried and convicted. The inquisitors dared not deliver them to the secular arm for execution, and various devices were discussed, but the matter was settled by procuring from Leo X his motu proprio _Cum sicut accepimus_, January 28, 1515, in which he granted faculties to the inquisitors to arrest, try and deliver for punishment to the secular authorities, any one who had struck, mutilated or slain an official of the Inquisition, even if it entailed effusion of blood or mutilation or death, without incurring any note of irregularity.[549] Under this the tribunals acted when such cases arose, notably in Granada, about 1545, when seven persons were thus relaxed--six Moriscos and an Old Christian--who, while in prison, killed the alcaide and his assistant and who were hanged before burning.[550] In time the cardinals of the Roman Inquisition were beset with similar scruples and, to relieve their consciences, Pius V, October 9, 1567, granted a decree empowering them to participate in sentences of blood without incurring irregularity.[551] This applied only to Italy, but it was otherwise with the terrible bull _Si de protegendis_, April 1, 1569, commanding the delivery to the secular arm, for the punishment due to high treason, of any one maltreating or even threatening an official of the Inquisition or destroying or altering its records. This was ordered to be published throughout the world; the Spanish Inquisition claimed the benefit of it, and had a Castilian version of it published every year. It made no illusion to irregularity, tacitly assuming that none was incurred and it was often cited in Spain to that effect.[552] Still, when in 1579, the Toledo tribunal desired the death-penalty for Francisco de la Bastida, for personating an official of the Inquisition, and there was no secular law to that effect, a special brief was obtained from Gregory XIII empowering it to find him guilty of death and deliver him to the secular arm for execution without incurring irregularity.[553]