Julia de Medici was born in 1535 in Florence, the illegitimate daughter of Alessandro de Medici, Duke of Florence, who is widely regarded as the first ruler of African descent in Renaissance Europe. Her father was known as “Il Moro,” or “the Moor,” due to his dark complexion, and speculation about his mother’s North African heritage followed Julia throughout her life. Though born outside wedlock, she was acknowledged by her father and raised with the privileges of a Medici princess, surrounded by luxury and attendants within the palace walls. Alessandro’s own origins were steeped in mystery.
Official records list his father as Lorenzo de Medici, Duke of Urbino, but many historians believe he was actually the illegitimate son of Giulio de Medici, who later became Pope Clement VII. His mother, Simonetta da Collevecchio, is thought to have been a servant in the Medici household, and a French author claimed in 1560 that she was a Moorish slave, though that assertion remains unproven and debated. Despite the ambiguity, Pope Clement VII treated Alessandro like a son, funding his education and preparing him for leadership. Alessandro’s path to power was forged through conflict.
In 1527, the Medici family was driven from Florence during an uprising, and Alessandro lived in exile for several years. In 1529, Pope Clement VII reached an agreement with Emperor Charles V to restore Medici rule, and after a ten-month siege, Florence fell. By 1532, Alessandro had been 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 earned a mixed reputation.
Supporters saw him as a protector of the poor with a strong sense of justice, while critics, particularly those exiled after the siege, called him tyrannical and morally corrupt. He maintained numerous mistresses, including Taddea Malaspina, a noblewoman from the ancient Malaspina family. From that relationship came two children: Giulia, born in 1532, and Giulio, born in 1535. Though both were illegitimate and held no official titles, Alessandro acknowledged them and ensured they were well cared for.
In 1536, Emperor Charles V honored a political promise by marrying his daughter Margaret of Austria to Duke Alessandro. The marriage was a strategic alliance meant to legitimize his rule and produce heirs, but Alessandro remained devoted to his longtime mistress. Just months later, his reign was cut short. 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 only 26 years old and left no legitimate heir. Several months after his death, a final child named Porzia was born to another mistress whose identity has been lost to history. With Alessandro gone, power in Florence shifted overnight. His son Giulio, only four years old, was passed over as successor.
Instead, Cosimo I, a member of the Medici’s junior branch, was elected duke. Cosimo, himself a teenager, pledged to care for the orphaned children of his predecessor. Young Giulia was sent to Villa di Castello, a family estate in the hills outside Florence, where she came under the watchful eye of Cosimo’s mother, Maria Salviati. There, she shared her home and bedroom with Bia de Medici, Cosimo’s own illegitimate daughter, and the two girls grew up like sisters.
In February 1542, a terrifying bout of fever swept through the household. Giulia, around seven years old, survived the illness, but five-year-old Bia did not. Her death marked a somber chapter in the nursery’s history, and Giulia mourned her deeply. As Giulia grew, she became fully integrated into court life.
Despite her illegitimate birth, her descent from the main Medici line was honored, and she displayed great pride in her lineage. She received a comprehensive education in refined manners, arts, and languages befitting a noblewoman. Court observers noted that she resembled her father, with the same strong features and curly hair. Despite her darker skin tone, many deemed her beautiful.
In 1550, when Giulia was about 15, Cosimo arranged her first marriage to Francesco Cantelmo, Duke of Popoli. Her dowry was enormous, worth the equivalent of tens of millions of dollars today. The marriage marked her formal entry into aristocratic society, making her a duchess in her own right. Tragedy returned in 1555 when Francesco 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 the painting, she appears dignified and sorrowful, beside an elaborately carved chair whose symbolism art historians have debated for years. Some believe it represents a steep terrain climbed by Hercules, while others say it symbolizes La Verna, a sacred Catholic site. The painting is widely seen as her response to criticism of her grandmother’s African descent, though some art historians have claimed the portrait may not even be of Giulia.
During her widowhood, Giulia spent time at the Augustinian convent of San Clemente, where her half-sister Porzia served as abbess. She supported the convent financially and dedicated herself to acts of devotion and charity. In 1559, she married again, this time to Bernardetto 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 the early years of her second marriage, Giulia and Bernardetto entertained lavishly and engaged in diplomatic affairs. But conflict arose in Florence. Three years after the death of his wife Eleonora di Toledo, Grand Duke Cosimo I took a much younger mistress, and according to court gossip, Giulia reportedly demanded to be treated as an equal. This strained her once-close relationship with Cosimo, though they later reconciled.
In 1567, Giulia and her husband relocated to Naples, where they secured the title to the lands of the principality of Ottaviano. There, Giulia managed estates, patronized 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 persisted into the modern era. Even as Giulia cemented her place in history, she was slowly being forgotten by it.
For centuries, she was erased from art that once celebrated her. A striking example is a painting by Pontormo depicting Maria Salviati with a child. For hundreds of years, viewers saw only Maria, but a restoration in 1937 revealed that a child had been painted out. Many now agree that child is Giulia de Medici.
The painting, now restored, is believed by many to be one of the first European portraits of a girl of African and European ancestry, though some argue the child is actually Bia de Medici. Giulia’s husband passed away before her, not long after 1576. She died in 1588 at the age of 52 or 53. Few records detail her final years, but her life had been interwoven with the fortunes and intrigues of one of Europe’s most powerful dynasties.
She was survived by her son Alessandro, who became Lord of Ottaviano and general of the Papal States. His descendants later claimed the title of Grand Duke of Tuscany after the extinction of the main Medici line in 1737, though their efforts were ultimately unsuccessful.
