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Scholars have re-examined the 500-year-old enigma concerning the demise ofSimonetta Vespucci, the Renaissance noblewoman whose visage inspired Sandro Botticelli’s most renowned artworks. A recently released study suggests that a pituitary tumor, rather than the tuberculosis previously attributed by historians, led to her unexpected demise at only twenty-three.

Vespucci has held a unique position in art history since the late fifteenth century, when her appearance served as the inspiration for Venus in Botticelli’s famous painting and for various other figures in his artwork. Her death in 1476 was sudden and, for many years, remained medically unexplained, often attributed to consumption, a common diagnosis at the time. The latest research, expanding on the same team’s previous work from seven years ago, utilizes archival letters and a facial analysis algorithm to propose an alternative, more precise medical explanation.

Correspondence from Her Last Days Suggests a Health Crisis

According to the study, published in Endocrinology, Diabetes & Metabolism, the most direct evidence is found in the correspondence exchanged betweenPiero Vespucci and Lorenzo de’MediciIn the final days of Simonetta’s life. The letters recount her collapsing at a ball, followed by a swift deterioration characterized by intense headaches, vomiting, disorientation, hallucinations, and a high temperature. As the writers mention, two doctors who were present at the time had differing opinions on the cause, with one believing it was related to her living circumstances and the other diagnosing tuberculosis, which proved ineffective against the illness.

Lead author Domiziana Nardelliand her colleagues contend that this set of symptoms closely matches a pituitary tumorapoplexy, a rare but hazardous emergency resulting from abrupt hemorrhaging oroxygen a loss inside a pituitary adenoma. Based on a comparative case series of young individuals with the same issue, the researchers discovered that the most common symptoms, such as headache and vision problems, are similar to what Simonetta is known to have faced, including her tendency to rest in a dimly lit room.

The study’s most remarkable evidence is visual, not written. Botticelli’s Allegorical Portrait of a Woman shows its subject, recognized as Simonetta, with milk clearly flowing from her breast, even though she is known to have never given birth. The researchers refer to this asgalactorrhea, a characteristic of hormone-producing pituitary tumors, and note that Marco Vespucci, her husband, eventually remarried and had nine children, indicating that the absence of pregnancy was not caused by his infertility.

To reinforce the assertion, the group utilized a face identification algorithm based on a pre-trained neural network tofive separate portraitsby Simonetta, attributed to Botticelli. According to Pozzilli and his colleagues, the analysis identified evolving facial changes in the artworks that align with those observed in individuals suffering from prolactin and growth hormone-producing adenomas, the same kind of tumor they think eventually caused her death.

The document also re-examines the so-calledstrabismus of Venus, the minor eye misalignment that was once celebrated as a Renaissance beauty standard in The Birth of Venus. The authors suggest that this characteristic might indicate cranial nerve compression caused by a developing tumor, although they emphasize that the historical records do not contain any evidence of this.explicit mention regarding visual impairment, and that extreme eye positioning was also a characteristic feature later adopted during Mannerism.

The scientists point out two incidents that might have caused the fatal event: the physical exertion from the lively Renaissance dances she was doing when she fainted, and a claimed meeting with Alfonso II of Aragon, Duke of Calabria, whose supposed history of aggression is mentioned in a historical record, although the writers admit that this account’s historical reliability is uncertain. They propose that either physical injury or intense stress could have been sufficient to cause apoplexy in a tumor that was already enlarged.

The authors do not completely dismiss all other possibilities, recognizing that ectopic pituitary adenomas are hard to rule out without imaging data that is no longer available after five centuries. Nevertheless, they conclude that the mix of tumor features, the symptoms documented in her last days, and the two plausible precipitating events leads to pituitary tumor apoplexy being the most probable cause for what cut short the life of one of the Renaissance’s most recognizable faces.

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