Agnesina di Montefeltre mentioned in the letter, Guidobaldo's soulful sister, was married to Fabritius Colonna, who subsequently became one of Italy's greatest captains. She was then twenty-eight years of age. She and her husband lived at the castle of Marino in the Alban mountains, where, in 1490, she bore him Vittoria Colonna, the future ornament of her house. Elisabetta found this beautiful child already betrothed to Ferrante d'Avalos, son of Marquis Alfonso of Pescara; Ferdinand II of Naples having brought about the betrothal of the two children as early as 1495 for the purpose of winning over the Colonna, the retainers of the house of Aragon.
The Duchess of Urbino actually went to Rome for the purpose of protecting her noble kinswoman, whom she kept incognito. She remained there until Easter. On her way to S. Peter's she directed anxious glances toward the Belvedere, where the bravest woman of Italy, a prisoner, was grieving her life away, Catarina Sforza having been confined there since Cæsar's return, February 26th, as is attested by a letter of that date written by the Venetian ambassador in Rome to his Signory. Elisabetta's feelings must have been rendered still more painful by the fact that her own husband, as well as her brother Gonzaga, both of whom were in the service of France, had given the princess up for lost.
She had scarcely left Rome when Catarina received news that her uncles Ludovico and Ascanio had fallen into the hands of the King of France. Having, with the aid of Swiss troops, again secured possession of Milan in 1500, they were ignominiously betrayed by the mercenaries at Novara, April 10th. Ludovico was carried away to France, where he died in misery, having spent ten years a prisoner in the tower of Loches; the once powerful cardinal was likewise taken a captive to France. A great tragedy had occurred in the house of Sforza. What must have been Catarina's distress when she, in her prison, learned that fate had overthrown all her race! Could one transport himself to that environment he would breathe the oppressive atmosphere with which Shakespeare enveloped his characters.
Catarina's jailers were the two most dreaded men of the age—the Pope and his son. The very thought of what surrounded her must have filled her with terror. In the Belvedere she was in constant dread of Cæsar's poison, and it is indeed a wonder that she did escape it. She made an unsuccessful attempt at flight, whereupon Alexander had her removed to the castle of S. Angelo. However, certain French gentlemen in the service of the one who was bent on her destruction—especially Ivo d'Allegre—interceded for her; and the Pope, after she had spent a year and a half in captivity, allowed her to choose Florence for her asylum. He himself commended her to the Signory in the following letter:
Unto my Beloved Sons: Greeting and the Apostolic Blessing. Our beloved daughter in Christ, the noble lady Catarina Sforza, is on her way to you. She, as you are aware, having for good reasons been held a prisoner by Us for a time, has again become the object of Our mercy. We, according to Our custom and to Our pastoral duties, have not only exercised mercy with regard to this Catarina, but also, so far as We with God's help were able, have looked with paternal solicitude after her welfare; therefore We deem it proper to write you for the purpose of commending this Catarina to your protection, so that she, having full confidence in Our good will towards you, and returning, so to speak, into her own country, may not be deluded in her expectations and by Our recommendation. We, therefore, shall be glad to learn that she has been well received and treated by you, in gratitude to her for having chosen your city for her abode, and owing to your feelings toward Us. Given at Rome, in S. Peter's, under the Apostolic seal, July 13, 1501. In the ninth year of our pontificate.
Hadrianus.
Catarina Sforza died in a convent in Florence in 1509. In her fatherland she left a son of the same mettle as herself, Giovanni Medici, the last of the great condottieri of the country, who became famous as leader of the Black Bands. There is a seated figure in marble of this captain, of herculean strength, with the neck of a centaur, near the church of S. Lorenzo in Florence.