Rumours of illicit intercourse between her and the Grand Duke were current all over Florence, and evil gossips at Court affirmed that the liaison had been of long continuance, wherein, too, the Duchess Isabella was herself implicated. Cosimo seems to have been conversant with the tittle-tattle, and, fearing the evil effect it might have for all concerned, determined to take the bull by the horns, so to speak, and to keep the scandal within the family.

His son Piero—who was walking closely in his father’s footsteps, and leading a free and fast, wild life, heavily in debt and habitually intoxicated, and the companion of loose women and gamesters—should be his scapegoat. He would marry him to his cousin! At the beginning of the negotiations Piero refused stoutly his father’s proposition, asserting his intention not to marry. By dint of ample offers of enlarged pecuniary emoluments and by tempting promises of exculpation from the consequences of his lustful extravagances, Piero at last yielded an unwilling assent to the betrothal. How far he was influenced by threats we can well imagine.

Piero de’ Medici and Eleonora de Garzia de Toledo were married in the private chapel of the Pitti Palace on the morning of 21st April 1571. That very night his young wife revealed the fact that she was enceinte, and she named his father, Duke Cosimo, as her ravisher! The Prince was too much taken up with his own pleasure to care very much about this revelation: he would go his own way, and his wife might go hers—such was the morality of the day! Still, this discovery was the first page in the tragic history of beautiful Eleanora di Piero de’ Medici.

Very shortly after the marriage Eleanora, who was then at Pisa, was delivered of a child, whom, in the absence of her husband, she named Cosimo—a significant nomenclature! She caused letters to be written to the Grand Duke Francesco, her brother-in-law, to acquaint him with the birth of the child, and to crave protection for his father’s son!

Following the unhappy example of Paolo d’Orsini and Isabella de’ Medici, and being absolutely their own masters, Piero and Eleanora agreed to live separate lives—he, a boy of seventeen and she just eighteen. What more disastrous beginning can be imagined for two young wedded lives, and yet it was inevitable. Piero did not care a bit for Eleanora, and Eleanora hated and despised Piero.

The marriage was but a brief break in evil associations, for the boy returned to his boon-companions in the city, and the girl sought the solace of her lovers. It was in vain the Grand Duke pointed out the errors of their ways—Piero retorted with a “Tu quoque frater!” He had every bit as much right to console himself with a mistress, one or more, as Francesco did with his “Cosa Bianca!” Moreover, he became urgent in his demand for a still more liberal allowance, which the Grand Duke weakly conceded—as he had done in the case of his other grasping brother, the Cardinal.

Everything and everybody at the Court of Florence seemed to be demented. To enjoy the basest pleasures and to indulge in the foulest passions, such was the way of the world; and Eleanora was but a child in years, but a woman in experience—and that experience not for the honour of her life, alas! Sinned against, she sinned like the rest. How could a lovely, talented, warm-hearted girl, with the hot blood of Spanish passion coursing through her veins, resist the admiration, the flattery, and the embraces of the gay young cavaliers of the Court? She merely followed the vogue, she was no recluse; and when, in 1575, she was enrolled as a “Soul” in the Accademia degli Elevati, she assumed the name of “Ardente”—a true title—a correct epithet!

One of the captains of the palace guard—himself a remarkably handsome and gallant soldier—Francesco Gaci, had a prepossessing young son, Alessandro, a cadet of the same regiment, who fell violently in love with Don Piero’s fascinating young wife. Unable to restrain his boyish ardour, one day he seized Donna Eleanora’s hand, covered it with kisses, and professed himself ready to die for love of her. The Princess, pining for love, looked with favour upon her infatuated lover, and granted him something of what he wished.

Alas, for love’s young dream! The Grand Duke caught wind of it, and without making much ado, promptly stopped the intrigue. Alessandro Gaci was removed summarily from his commission and enclosed in the monastery of Camaldoli; whilst to the Princess was administered a smart rebuke and warning.

Eleanora’s haughty spirit rose at the interference of her brother-in-law in matters of her heart, and she determined to act in opposition to his commands. She had scarcely got off with the old love before she was on with the new. This time she appears to have made the first advance. At all events, in the entourage of the Grand Duchess Giovanna, was an attractive and youthful knight of the Order of St Stephen of Pisa—Duke Cosimo’s new naval-military order. He was a court chamberlain with the military rank of lieutenant—Bernardino, the son of Messer Sebastiano degl’ Antinori, who had translated Boccaccio’s works for Cosimo.