Leonardo da Vinci

Leonardo was born on April 15, 1452, in Anchiano, a hamlet near the Tuscan hill town of Vinci, then part of the territory of the Republic of Florence ^[1]. He was the illegitimate son of Ser Piero da Vinci, a young notary from a family of local landowners, and a woman named Caterina, whose modest origins have been debated by scholars for generations ^[2]. Because his parents never married, the boy was raised largely in the household of his paternal grandfather, and his birth status barred him from following his father into the notarial profession.

That exclusion may have been a stroke of fortune. Freed from the Latin schooling that prepared boys for law and the church, Leonardo received only a basic education in reading, writing, and abacus arithmetic ^[1]. He later described himself as an unlettered man, an "omo sanza lettere," yet he turned the label into a point of pride, insisting that direct observation of nature outranked book learning ^[3]. The hills around Vinci, with their streams, caves, and birds, supplied the first material for a visual curiosity that never left him.

Around 1464, Ser Piero moved his practice to Florence and soon apprenticed his talented son to Andrea del Verrocchio, one of the busiest sculptors and painters in the city ^[2]. In Verrocchio's workshop Leonardo learned drafting, metalwork, carpentry, and the chemistry of pigments alongside painting. Giorgio Vasari, writing in the sixteenth century, recorded the tradition that Leonardo painted an angel in Verrocchio's Baptism of Christ so beautifully that the master resolved never to touch color again, a story likely embellished but rooted in the young man's evident gifts ^[4].

By 1472 Leonardo was enrolled in the Florentine painters' confraternity, the Compagnia di San Luca, which entitled him to accept independent commissions ^[1]. His earliest dated work is a pen drawing of the Arno valley from August 1473, a landscape studied for its own sake rather than as background, something almost without precedent in Italian art ^[2]. Commissions followed, including an Adoration of the Magi ordered by the monks of San Donato a Scopeto in 1481, which he left unfinished when he departed for Milan, establishing a pattern of abandoned projects that would shadow his whole career ^[1].

The move to Milan around 1482 reshaped his life. Leonardo offered his services to Ludovico Sforza, the city's ruler, in a remarkable letter of application that listed his abilities as a military engineer first: portable bridges, siege machines, cannon, and armored vehicles. Painting appeared near the end, almost as an afterthought ^[3]. Ludovico took him on, and for nearly two decades Leonardo worked as court artist, engineer, and impresario of festivals, while pursuing private studies in geometry, mechanics, and anatomy.

Milan gave him scale. He spent years on a colossal bronze equestrian monument to Francesco Sforza, producing a full-size clay model over seven meters tall before the project collapsed in 1494, when the bronze set aside for casting was diverted to make cannon against an invading French army ^[2]. The clay horse was later destroyed by French troops. Even so, the Milanese period produced the Virgin of the Rocks and, in the refectory of Santa Maria delle Grazie, the mural that secured his fame across Europe.

Anyone asking who was Leonardo da Vinci usually meets his paintings first. The Last Supper, painted between about 1495 and 1498 for Ludovico Sforza, reimagined a familiar subject as a study of psychological shock, capturing the instant after Christ announces that one of the apostles will betray him ^[4]. Leonardo worked in an experimental technique on dry plaster rather than true fresco, which let him revise slowly but doomed the surface to early decay; restoration efforts have continued into the twenty-first century ^[5]. The composition's command of gesture and perspective made it one of the most copied works in art history.

The Mona Lisa, begun in Florence around 1503, carried his method to its limit. Using sfumato, the smoke-like blending of tones without hard outlines, he built the portrait through many thin layers of glaze, and technical studies suggest he kept refining it for years, possibly until late in his life ^[5]. The sitter is generally identified as Lisa Gherardini, wife of the Florentine merchant Francesco del Giocondo. The painting entered the French royal collection and now hangs in the Louvre, where it draws millions of visitors each year ^[5].

His achievements ran far beyond the easel. Roughly 7,000 pages of his notebooks survive, perhaps a quarter of what he wrote, covering hydraulics, optics, geology, botany, flight, and machine design ^[3]. He drew flying machines with flapping wings, a helical air screw, gear trains, canal locks, and studies of turbulent water that anticipate later fluid dynamics. His anatomical campaign was equally serious: he dissected some thirty human corpses, producing drawings of the skull, heart, muscles, and a famous depiction of a fetus in the womb that combined artistic clarity with genuine investigation ^[6]. The Vitruvian Man, his drawing of a male figure inscribed in a circle and a square, condensed his conviction that human proportion mirrored the geometry of the world ^[3]. Because the notebooks stayed unpublished for centuries, most of these Leonardo da Vinci achievements influenced later science only after his ideas had been independently rediscovered.

Leonardo never married and had no known children. He was described by contemporaries as strikingly handsome, physically strong, charming in conversation, and fond of fine clothes in unusual colors ^[4]. He wrote left-handed in mirror script, running from right to left, a habit that has invited endless speculation but probably reflected simple convenience for a left-handed writer avoiding smudged ink ^[3].

In 1476, while still associated with Verrocchio's workshop, he was twice anonymously accused of sodomy along with three other young men; the charges were dismissed for lack of witnesses ^[2]. Historians continue to debate his intimate life, since he left almost no personal confessions among his thousands of pages. What the record does show is deep attachment to two long-term companions: Gian Giacomo Caprotti, nicknamed Salaì, who joined the household as a ten-year-old in 1490 and stayed for decades despite Leonardo's notes calling him a thief and a liar, and Francesco Melzi, a young Milanese nobleman who became his devoted assistant and eventual heir ^[2].

Among the more reliable Leonardo da Vinci facts is his tenderness toward animals. Vasari reported that he bought caged birds in the market in order to set them free, and his notebooks contain passages condemning cruelty to living creatures ^[4]. Several early sources suggest he avoided eating meat, at least for part of his life. He kept his working methods private, guarded his notebooks closely, and moved between patrons with a courtier's tact and an independent contractor's restlessness.

The French invasion that toppled Ludovico Sforza in 1499 pushed Leonardo out of Milan. He passed through Mantua and Venice, advising the Venetians on defenses against the Ottomans, then returned to Florence in 1500 ^[1]. In 1502 he spent several months as chief military engineer to Cesare Borgia, inspecting fortresses across central Italy and producing town maps of startling accuracy, including a bird's-eye plan of Imola that combined measurement and imagination in a wholly new kind of cartography ^[3].

Back in Florence, the city commissioned him to paint the Battle of Anghiari in the council hall of the Palazzo Vecchio, setting up a direct rivalry with the young Michelangelo, who was assigned the facing wall. Leonardo again experimented with his materials, the paint failed to dry properly, and the mural was abandoned; it survives only through his preparatory studies and copies by other artists ^[2]. During these same Florentine years he began the Mona Lisa and pursued anatomical dissections at the hospital of Santa Maria Nuova ^[6].

He returned to Milan under French patronage in 1506, moved to Rome in 1513 under the protection of Giuliano de' Medici, and found himself increasingly sidelined as papal commissions flowed to Raphael and Michelangelo ^[1]. In 1516 he accepted an invitation from King Francis I of France, who installed him at the manor of Clos Lucé near the royal château of Amboise with a generous pension and the title of first painter, engineer, and architect to the king ^[5]. There he organized his notebooks, designed court festivities, and drew a series of visionary deluge studies. He suffered a paralysis of the right hand in his final years, though as a left-handed draftsman he could still draw. Leonardo died at Clos Lucé on May 2, 1519, at the age of sixty-seven, and was buried at Amboise ^[1].

Leonardo's will left his manuscripts and drawings to Francesco Melzi, who guarded them until his own death in 1570. Melzi's heirs dispersed the collection, and the pages scattered across Europe into what are now known as codices held in Milan, Paris, London, Turin, Madrid, and Windsor ^[3]. The Codex Leicester, a treatise on water and geology, was purchased by Bill Gates in 1994 for 30.8 million dollars, then a record price for any manuscript ^[6]. Because so much stayed hidden for so long, Leonardo's scientific reputation is largely a modern construction, assembled as scholars transcribed the mirror writing from the nineteenth century onward.

His artistic influence, by contrast, was immediate. Sfumato, atmospheric perspective, and the pyramidal composition of his Madonnas shaped Raphael and generations of painters after him, while The Last Supper became the standard against which narrative painting was measured ^[4]. Fewer than twenty surviving paintings are generally accepted as his, a scarcity that has fueled both scholarship and a heated art market; a panel attributed to him, Salvator Mundi, sold at auction in 2017 for 450.3 million dollars, the highest price ever paid for a painting, even as specialists continued to argue over how much of it is by his hand ^[5].

The five hundredth anniversary of his death in 2019 brought major exhibitions at the Louvre and elsewhere, confirming his status as a global cultural touchstone ^[5]. Engineers have built working models from his sketches, anatomists have praised the accuracy of his heart studies, and the phrase "Renaissance man" is now shorthand for the breadth he embodied. What endures beyond the celebrity is a method: trust the eye, test the idea, draw what is actually there. That habit of mind, recorded across thousands of pages, is the real inheritance Leonardo left behind ^[3].