Botticelli’s “Venus”
“The Birth of Venus” by Sandro Botticelli. His muse, Simonetta Vespucci, served as inspiration. © imago/United Archives International
For centuries, tuberculosis was thought to be the cause of Simonetta Vespucci’s early death, the model for Botticelli’s famed painting, “The Birth of Venus.” Recent research, however, suggests that a brain tumor might have been responsible. Surprisingly, clues to this revelation were found within the paintings themselves.
An international research team from Queen Mary University of London, Università Campus Bio-Medico di Roma, and the University of California has proposed a groundbreaking explanation for one of art history’s oldest medical mysteries.
In a study published in the journal “Endocrinology, Diabetes & Metabolism”, the researchers concluded that Simonetta Vespucci, the woman believed to have inspired Botticelli’s masterpiece, likely did not die from tuberculosis, as previously assumed. Rather, evidence leans toward a pituitary tumor that triggered a fatal medical emergency due to sudden bleeding.
Who was Simonetta Vespucci?
- Born in 1453 in Liguria as Simonetta Cattaneo, Simonetta Vespucci became one of the most captivating figures of the Italian Renaissance. She married Marco Vespucci in 1469, belonging to a prestigious Florentine banking family.
- Known for her beauty and intellect, she was a prominent presence in Florentine society and was affectionately given the title “La Sans Par” or “the Incomparable” by the humanist Poliziano. She maintained close relationships with influential figures like Lorenzo and Giuliano de’ Medici.
One of the Most Recognizable Faces in Art History
Her face is arguably among the most recognizable in art history, second only to the Mona Lisa. Many art historians agree that Botticelli regarded Simonetta as his primary muse, having portrayed her multiple times.
While “The Birth of Venus” was painted between 1484 and 1486, years after Vespucci’s death in 1476, it is widely believed to depict her idealized image. Botticelli revered her to the extent that he chose to be buried at her feet in the Ognissanti church in Florence.
Simonetta Vespucci passed away at the young age of 23. For a long time, tuberculosis was deemed the most plausible explanation for her death, as the disease was widespread and often fatal during the 15th century. However, in 2019, a research team led by Professor Paolo Pozzilli from London proposed an alternate hypothesis, identifying gradual changes in Vespucci’s facial features in Botticelli’s portraits—changes in the jaw, forehead, and soft tissue. Such changes can occur in patients with a hypopituitarism tumor, which affects the small gland at the base of the brain that regulates hormone levels.
A Painting as a Medical Clue
Another Botticelli work featuring a woman portrayed while breastfeeding has provided crucial insights. The researchers believe this woman is also Vespucci, yet historical records show she never had children.
The phenomenon of milk production without pregnancy is typical of a tumor that releases both growth hormones and prolactin.
This representation of Vespucci is surprising, and Pozzilli and his team believe it, alongside the changes in her facial features, could depict the actual physical symptoms of such an adenoma.
The Final Days: Collapse While Dancing
In their recent study, the researchers delve deeper into the circumstances surrounding Vespucci’s death. According to study author Domiziana Nardelli from Università Campus Bio-Medico di Roma, letters document her final days in detail: Simonetta collapsed during a ball and subsequently experienced severe headaches, hallucinations, vomiting, and high fever in a dimly lit room.
These symptoms correspond with what researchers term pituitary tumor apoplexy, a medical emergency where a pituitary tumor suddenly bleeds or rapidly expands.
As Professor Paolo Pozzilli explains in a piece for “The Conversation,” this scenario provides an explanation for something the tuberculosis theory struggles to elucidate: the rapid decline of a previously healthy young woman to death. Chronic infections like tuberculosis typically result in a slower, more pronounced deterioration.
Was a Violent Incident the Trigger?
Researchers have identified two documented events that could have precipitated the apoplexy in the months leading up to Vespucci’s death: her collapse while dancing at the ball and a suspected violent incident involving Alfonso II of Aragon, the Duke of Calabria. Either scenario could have contributed to the bleeding or sudden enlargement of the tumor.
Additionally, the researchers offer a new perspective on an iconic detail of “The Birth of Venus”: the slight misalignment of the eyes, known as strabismus. Historically interpreted as an aesthetic feature or an expression of piety, this characteristic might also be a result of the growing tumor, according to the team. Pozzilli plans to conduct a follow-up study on this aspect.
While absolute certainty can’t be provided regarding a death that occurred over 500 years ago— as no tissue samples or imaging findings exist— cumulating the portraits and historical documents presents a more coherent narrative than any single source alone.
