Leonardo was born on 15 April 1452 (Old Style) "at the third hour of the night" in the Tuscan hill town of Vinci, in the lower valley of the Arno river in the territory of the Medici-ruled Republic of Florence. He was the out-of-wedlock son of the wealthy Messer Piero Fruosino di Antonio da Vinci, a Florentine legal notary, and Caterina, a peasant. Leonardo had no surname in the modern sense - "da Vinci" simply meaning "of Vinci"; his full birth name was "Lionardo di ser Piero da Vinci", meaning "Leonardo, (son) of (Mes)ser Piero from Vinci". The inclusion of the title "ser" indicated that Leonardo's father was a gentleman. Little is known about Leonardo's early life. He spent his first five years in the hamlet of Anchiano in the home of his mother, and from 1457 lived in the household of his father, grandparents and uncle in the small town of Vinci. His father had married a sixteen-year-old girl named Albiera Amadori, who loved Leonardo but died young in 1465 without children. When Leonardo was sixteen (1468), his father married again to twenty-year-old Francesca Lanfredini, who also died without children. Piero's legitimate heirs were born from his third wife Margherita di Guglielmo (who gave birth to six children: Antonio, Giulian, Maddalena, Lorenzo, Violante and Domenico) and his fourth and final wife, Lucrezia Cortigiani (who bore him another six children: Margherita, Benedetto, Pandolfo, Guglielmo, Bartolomeo and Giovanni). In all, Leonardo had twelve half-siblings, who were much younger than him (the last was born when Leonardo was forty years old) and with whom he had very few contacts, but they caused him difficulty after his father's death in the dispute over the inheritance. Leonardo received an informal education in Latin, geometry and mathematics. In later life, Leonardo recorded only two childhood incidents. One, which he regarded as an omen, was when a kite dropped from the sky and hovered over his cradle, its tail feathers brushing his face. The second occurred while he was exploring in the mountains: he discovered a cave and was both terrified that some great monster might lurk there and driven by curiosity to find out what was inside. Leonardo's early life has been the subject of historical conjecture. Vasari, the 16th-century biographer of Renaissance painters, tells a story of Leonardo as a very young man: A local peasant made himself a round shield and requested that Ser Piero have it painted for him. Leonardo responded with a painting of a monster spitting fire that was so terrifying that Ser Piero sold it to a Florentine art dealer, who sold it to the Duke of Milan. Meanwhile, having made a profit, Ser Piero bought a shield decorated with a heart pierced by an arrow, which he gave to the peasant. In 1466, at the age of fourteen, Leonardo was apprenticed to the artist Andrea di Cione, known as Verrocchio, whose bottega (workshop) was "one of the finest in Florence". He apprenticed as a garzone (studio boy) to Andrea del Verrocchio, the leading Florentine painter and sculptor of his day (and would do so for 7 years). Other famous painters apprenticed or associated with the workshop include Domenico Ghirlandaio, Perugino, Botticelli, and Lorenzo di Credi. Leonardo would have been exposed to both theoretical training and a vast range of technical skills, including drafting, chemistry, metallurgy, metal working, plaster casting, leather working, mechanics and carpentry as well as the artistic skills of drawing, painting, sculpting and modelling. Much of the painted production of Verrocchio's workshop was done by his employees. According to Vasari, Leonardo collaborated with Verrocchio on his The Baptism of Christ, painting the young angel holding Jesus' robe in a manner that was so far superior to his master's that Verrocchio put down his brush and never painted again, although this is believed to be apocryphal. Close examination reveals areas that have been painted or touched-up over the tempera using the new technique of oil paint; the landscape, the rocks seen through the brown mountain stream and much of the figure of Jesus bearing witness to the hand of Leonardo. Leonardo may have been the model for two works by Verrocchio: the bronze statue of David in the Bargello and the Archangel Raphael in Tobias and the Angel. By 1472, at the age of twenty, Leonardo qualified as a master in the Guild of Saint Luke, the guild of artists and doctors of medicine, but even after his father set him up in his own workshop, his attachment to Verrocchio was such that he continued to collaborate with him. Leonardo's earliest known dated work is a drawing in pen and ink of the Arno valley, drawn on 5 August 1473. From September 1513 to 1516, under Pope Leo X, Leonardo spent much of his time living in the Belvedere in the Vatican in Rome, where Raphael and Michelangelo were both active at the time. In October 1515, King Francis I of France recaptured Milan. On 19 December, Leonardo was present at the meeting of Francis I and Pope Leo X, which took place in Bologna. Leonardo was commissioned to make for Francis a mechanical lion that could walk forward then open its chest to reveal a cluster of lilies. In 1516, he entered Francis' service, being given the use of the manor house Clos Luce, now a public museum, near the king's residence at the royal Chateau d'Amboise. He spent the last three years of his life here, accompanied by his friend and apprentice, Count Francesco Melzi, and supported by a pension totalling 10,000 scudi. Leonardo died at Clos Luce, on 2 May 1519 at the age of 67. The cause is generally stated to be recurrent stroke; this diagnosis is consistent with accounts of the state of Leonardo's alleged remains as described in 1863.  Francis I had become a close friend. Vasari records that the king held Leonardo's head in his arms as he died, although this story, beloved by the French and portrayed in romantic paintings by Ingres, Menageot and other French artists, as well as by Angelica Kauffman, may be legend rather than fact. Vasari states that in his last days, Leonardo sent for a priest to make his confession and to receive the Holy Sacrament. In accordance with his will, sixty beggars followed his casket. Melzi was the principal heir and executor, receiving, as well as money, Leonardo's paintings, tools, library and personal effects. Leonardo also remembered his other long-time pupil and companion, Salai, and his servant Battista di Vilussis, who each received half of Leonardo's vineyards. His brothers received land, and his serving woman received a black cloak "of good stuff" with a fur edge. Leonardo da Vinci was buried in the Chapel of Saint-Hubert in Chateau d'Amboise in France. Some 20 years after Leonardo's death, Francis was reported by the goldsmith and sculptor Benvenuto Cellini as saying: "There had never been another man born in the world who knew as much as Leonardo, not so much about painting, sculpture and architecture, as that he was a very great philosopher." CANNOTANSWER

Answer this question "What was his age" by extracting the answer from the text above.

Leonardo died at Clos Luce, on 2 May 1519 at the age of 67.