Gugliemo Pazzi, who knew of, but did not participate in, the plot, took refuge from the popular fury in the palace of his brother-in-law Lorenzo de’ Medici. He was banished. Giovanni de’ Pazzi, the husband of the Borromei heiress, eventually died in prison at Volterra, and the seven sons of Francesco de’ Pazzi’s brother Piero were either hung, condemned to perpetual exile, or to imprisonment for life. Jacopo was caught while crossing the frontier into the Romagna, brought back to Florence, and executed. His body was laid in the family vault in Sta. Croce, but the mob disinterred it, dragged it through the streets to his palace and battered the head against the door, amidst ironical shouts that the master wanted to come in. At length the body was thrown into the Arno, followed, as it floated down stream, by a jeering crowd. In 1498 the fine palace was bought by Francesco Cibo, son of Pope Innocent VIII. and at his death went to his son Lorenzo, whose wife Ricciarda Malaspina was one of the many ladies admired by the base-born Duke Alessandro de’ Medici. Her brother-in-law, the Archbishop of Marseilles, then determined to murder the Duke. Varchi relates that “when Alessandro went to the palace he used to sit on a certain chest which was in the room of the Marchesana, very close to the bed in which she slept. So the Archbishop planned to fill a similar chest with gunpowder, and to set it in the place of the one the Duke was wont to use, and it was to be so made that he might easily set fire to the powder inside when the Duke sat on it. This he did because it seemed to him that the close friendship and great familiarity between the Duke and the Marchesana was a matter of reproach and most shameful. But while all things necessary for carrying out his evil intent were being prepared, the plot was discovered. He was imprisoned until the Emperor came to Florence, when he was released and allowed to go where it best pleased him.”