In 1535, a girl was born in Florence who carried the blood of the city’s most powerful dynasty and the visible heritage of an African ancestor. Her name was Giulia de’ Medici, daughter of Alessandro de’ Medici, the Duke of Florence, a man of mixed race who is often considered the first Black ruler of Renaissance Europe. From the moment of her birth, her life was bound up in secrecy, political maneuvering, and the legacy of a father whose own origins were clouded by rumor and speculation. Alessandro’s rise to power was anything but straightforward.
Born in Florence in 1510, he was officially recorded as the son of Lorenzo de’ Medici, Duke of Urbino, but many historians argue he was actually the illegitimate child of Giulio de’ Medici, the man who would later become Pope Clement VII. His mother was Simonetta da Collevecchio, believed to have been a servant in the Medici household. Because of his notably dark complexion, Alessandro was known as “il Moro,” or the Moor, which led many to believe Simonetta was African or had strong African ancestry. A French author named Jean Nerato even claimed in a 1560 book that Alessandro’s mother was a Moorish slave, though this has never been proven.
What is certain is that the future Pope Clement VII treated Alessandro with extraordinary favor, funding his education, training him in diplomacy and warfare, and raising him among Florence’s elite as if he were a true heir. Alessandro’s path to the ducal throne was driven by crisis. In 1527, during the War of the League of Cognac, an uprising drove the Medici family out of Florence. Alessandro went into exile, but in 1529 Pope Clement VII reached an agreement with Emperor Charles V to restore Medici rule.
After a ten-month siege, Florence fell, and by 1531 the Medici were back. In 1532, Alessandro was officially named the city’s first hereditary duke under a new constitution, marking the end of the Florentine Republic and the beginning of Medici dynastic rule. As duke, Alessandro’s reputation was sharply divided. His supporters saw him as a protector of the poor and a man of practical justice.
His critics, especially those exiled after the siege, called him tyrannical, corrupt, and morally reckless. He kept numerous mistresses, one of whom was Taddea Malaspina, a noblewoman from an ancient family. From that relationship came two children, Giulia, born in 1535, and her half-sister Giuliana, born in 1532. Though illegitimate and holding no titles, both children were acknowledged by Alessandro and raised with the luxuries befitting Medici blood.
Many believed the duke had plans for them, imagining a future where his children might claim status or influence, just as he himself had risen despite his own birth. In 1536, Emperor Charles V honored a political promise to Pope Clement VII by giving his daughter Margaret of Austria to Alessandro in marriage. It was a strategic alliance meant to secure his rule and produce legitimate heirs. Yet despite his new bride, Alessandro remained devoted to his longtime mistress, Taddea Malaspina, viewing marriage as a matter of state rather than affection.
But his power was already crumbling in silence. On the night of January 6, 1537, Alessandro was lured into a private meeting and murdered by his own cousin and confidant, Lorenzino de’ Medici. He was just twenty-six years old and left no legitimate heir. Margaret of Austria was only fourteen, and the marriage had produced no children.
Months after his death, a final child named Porzia was born to another mistress, whose identity has since been lost to time. Alessandro’s murder threw Florence into immediate upheaval. His young children were caught in the resulting storm. Giulia, only four years old, was passed over for succession despite her father’s blood.
Instead, Cosimo I, a teenager from the Medici’s junior branch, was elected the new Duke of Florence. Cosimo pledged to care for the orphans of his predecessor, and at least outwardly he kept that promise. Young Giulia was sent to the Villa di Castello, a family estate in the hills outside Florence, where she came under the watch of Cosimo’s mother, Maria Salviati, a devout and commanding woman. Giulia was not alone there.
She shared her home and bedroom with Bia de’ Medici, Cosimo’s own illegitimate daughter, who was just two years younger. The two girls grew up like sisters, their bond filling the villa with warmth and play. Tragedy struck in February 1542, when a severe fever swept through the household. Giulia, around seven years old, survived the illness, but Bia, only five or six, did not.
Her death was a deep loss for Giulia, for Maria Salviati, and for Cosimo himself. As Giulia grew, she became fully integrated into court life. Her illegitimacy did not hold her back; her descent from the main Medici line was honored, and her father’s assassination was even compared to that of Julius Caesar at the hands of Brutus. She took pride in her lineage and carried herself with self-assurance.
She received a thorough education in manners, arts, and languages befitting a noblewoman. Cosimo’s wife, Eleonora di Toledo, took great care in her appearance and status, once erupting in fury when Giulia’s riding cloak was made the wrong length and lacked the ornamentation she had ordered. As she matured, court observers noted that Giulia resembled her father, sharing his strong features and curly hair. Despite her darker complexion compared to most ladies of the court, she was widely considered beautiful.
In 1550, when Giulia was around fifteen, Cosimo arranged her first marriage to Francesco Cantelmo, Duke of Popoli, a nobleman of high rank. Her dowry was enormous, worth the equivalent of tens of millions of dollars today. The marriage launched Giulia into aristocratic society as a duchess in her own right. Five years later, Francesco Cantelmo died, leaving Giulia a widow in her early twenties.
In her grief, she commissioned a portrait by Alessandro Allori, one of Florence’s great artists. In it, she appears dignified, sorrowful, and proud. Beside her is an elaborately carved chair with a sloping arm, which art historians have interpreted in many ways. Some believe it depicts a steep terrain being climbed by Hercules; others argue it symbolizes La Verna, a sacred Catholic site associated with St.
Francis of Assisi. Many agree the painting was a response to criticism of her African descent and of her father’s origins. Yet some art historians have even questioned whether the portrait depicts Giulia at all. During her widowhood, Giulia spent considerable time at the Augustinian convent of San Clemente in Florence, where her half-sister Porzia served as abbess.
Giulia supported the convent financially and patronized other Augustinian institutions, devoting herself to charity and devotion. In 1559, she married again, this time to Bernardo de’ Medici, a cousin of Cosimo I. A year later, she gave birth to a son, whom she named Alessandro in honor of her father. In their early years of marriage, Giulia and Bernardo entertained lavishly and engaged in diplomatic affairs.
But tensions arose when the widowed Grand Duke Cosimo I, then forty-six, took a much younger mistress, Eleonora degli Albizzi, then about twenty-three. The relationship produced two children, a daughter who died in infancy and a son named Giovanni, later legitimized by his father. According to court gossip, Giulia demanded to be treated as an equal to the new mistress, a bold stance toward a woman already scorned by many at court. The friction strained her close relationship with Cosimo, though they later reconciled.
In 1567, Giulia and Bernardo relocated to Naples, where they secured rights to lands of the principality of Ottaviano. There, Giulia managed estates, continued to patronize religious institutions, and secured her family’s future. Her descendants through her son Alessandro held the title of Prince of Ottaviano, a noble line that survived into the modern era. Even as she cemented her place in history, though, Giulia was slowly being erased from it.
For centuries, a painting by Pontormo of Maria Salviati with a child was known only as a portrait of the older woman. Then, in 1937, a restoration revealed a child had been painted out. Most now agree that child is Giulia de’ Medici. In the painting, she clings to Maria’s side with an anxious expression, her features resembling her father’s.
The restored work is believed by many to be one of the first European portraits of a girl of African and European ancestry. Others still argue the child is actually Bia, noting that Giulia and Maria might not have been close enough to warrant such a tender image. Bernardo died not long after 1576 in Naples. Giulia de’ Medici herself died in 1588, aged fifty-two or fifty-three.
Few historical records detail her final years, but her life had been interwoven with the fortunes of one of Europe’s most powerful families. She was survived by her son Alessandro, who became Lord of Ottaviano and general of the Papal States. His descendants later laid claim to the title of Grand Duke of Tuscany after the extinction of the main Medici line in 1737, though their efforts were ultimately unsuccessful.
In the end, Giulia’s story survived not through declarations but through a restored painting and the memory of a girl who carried her father’s blood and her family’s storm with her to the end.