'Moreover,' says Infessura, in his own language, 'on the last day of June, when the people were celebrating in Rome the festivity of the most happy decapitation of Saint Paul the Apostle, whose head was cut off by the most cruel Nero--on that very day, about an hour and a half after sunrise, the aforesaid Holiness of our Sovereign Lord caused the Protonotary Colonna to be beheaded in the Castle; and there were present the Senator and the Judge of the crime. And when the Protonotary was led out of prison early in the morning to the grating above the Castle, he turned to the soldiers who were there and told them that he had been grievously tormented, wherefore he had said certain things not true. And immediately afterwards, when he was in the closed place below, where he was beheaded, the Senator and Judge sat down as a Tribunal, and caused to be read the sentence which they passed against him, although no manner of criminal procedure had been observed, since all the confessions were extorted under torture, and he had no opportunity of defending himself.' Therefore, when this sentence had been read, the Protonotary addressed those present and said: 'I wish no one to be inculpated through me. I say this in conscience of my soul, and if I lie, may the devil take me, now that I am about to go out of this life; and so thou, Notary who hast read the sentence, art witness of this, and ye all are witnesses, and I leave the matter to your conscience, that you should also proclaim it in Rome,--that those things written in this sentence are not true, and that what I have said I have said under great torture, as ye may see by my condition.' He would not let them bind his hands, but knelt down at the block, and forgave the executioner, who asked his pardon. And then he said in Latin, 'Lord, into thy hands I commend my spirit,' and called thrice upon Christ the Saviour, and at the third time, the word and his head were severed together from his body.
Then they placed the body in a wooden coffin and took it to Santa Maria Transpontina, the first church on the right, going from the Castle toward Saint Peter's, and when none came to take it away, they sent word to his mother. And she, white-haired and tearless, with burning eyes, came; and she took her son's head from the coffin and held it up to the people, saying, 'Behold the justice of Sixtus,' and she laid it in its place tenderly; and with torches, and the Confraternities, and many priests, the body was taken to the Church of the Holy Apostles, and buried in the Colonna Chapel near the altar.