Conservation France

Mona Lisa could have been completed a decade later than thought

A drawing of rocks by Leonardo in the Royal Collection provides evidence that the artist worked on the portrait for much longer than the dates officially given by the Louvre

Detail of the Prado's copy of the Mona Lisa. The rocks in the background landscape to the right of the figure are based on a drawing by Leonardo now in the Royal Collection

Leonardo’s Mona Lisa was probably completed a decade later than the date given by the Louvre. This radical redating follows conservation work on the Prado’s copy of the Mona Lisa.

The Louvre dates the Mona Lisa to 1503-06. It has now been realised, however, that part of the painted background was based on a drawing of rocks that Leonardo made in 1510-15.

The link between the drawing and the landscape in the Madrid copy was spotted by the Prado’s technical specialist, Ana González Mozo. This emerged during an investigation of the background in the copy, which had been overpainted in black in the second half of the 18th century. The overpaint was removed earlier this year.

When the Prado copy was being studied, infrared images revealed that a section of the original design for the rocks beneath the paint surface had been based on a drawing now in the Royal Collection. Martin Clayton, the senior curator at the Windsor print room, dates the drawing to 1510-15 on stylistic grounds.

The Prado copy of the Mona Lisa was worked on side by side with the Louvre painting, so this connection has important implications for the dating of Leonardo’s original.

Louvre specialists went back to photographs taken of the original Mona Lisa in 2004. They realised that the design for part of the rocks on the right side in the Prado copy also appears in the underdrawing of the original, in a blurred form. This can just be made out in an emissiograph, an image made using an x-ray technique.

It is known that Leonardo had begun the Mona Lisa by 1503, since that year it was recorded in a note by a senior Florentine official, Agostino Vespucci. What remains controversial is the date of its completion.

The German scholar Frank Zöllner proposed “1506 and later (1510?)” in the 2011 edition of his Leonardo catalogue. Martin Kemp, from Oxford University, suggested 1516 in his 2004 book on Leonardo. When the Prado unveiled the conserved copy of the Mona Lisa on 21 February, it also gave 1516 for its version. It was in 1516 that Leonardo left Rome for France, to serve François I.

Although the Louvre still dates the completion of the Mona Lisa to 1506, according the label in the gallery (and on its website), its curator, Vincent Delieuvin, is now suggesting that it could be up to 1519.

What took so long?

The redating of the original has important implications for Leonardo studies. It has been assumed that the portrait was commissioned by the family of Lisa del Giocondo, whose husband was a wealthy Florentine merchant. Few families, however, would have waited 13 years for a commission to be completed. This delay helps to resolve the question of why the portrait never went to the Giocondos.

The extremely long period over which the painting was created, up to 16 years, is further evidence that Leonardo worked slowly. He found it very difficult to finish a picture, partly because he was a perfectionist.

If the Mona Lisa was only completed in around 1516, rather than 1506, then it represents Leonardo’s later style. If it proves possible to narrow down a completion date, it could then lead to a more precise dating of other works from this period—and in particular two paintings in the Louvre, The Virgin and Child with St Anne (currently dated 1503-19) and St John the Baptist (currently dated 1508-19). The Virgin and Child with St Anne will be the subject of a special exhibition at the Louvre (29 March-25 June).

As for Lisa Giocondo, in 1503 she was a young woman of 23. If Leonardo’s painting was not finished until 1516, she would then have been 36—which at that time was middle-aged.


A drawing of a rocky outcrop by Leonard, dated to around 1510-15 based on stylistic grounds (Photo: The Royal Collection © 2012, Her Majesty Queen Elizabeth II, RL 12397)
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Comments

28 Apr 14
15:56 CET

DERIC WOOD, BANGKOK

Given the youthful visage in Raphael's 1504 sketch of the Mona Lisa portrait. The report of the 'Head' already worked on in 1503, in the Vespucci-inspired Heidelberg Document. The report by Gian Paolo Lomazzo - a contact of Melzi who surely would have corrected the remark if false - of a Mona Lisa AND a Gioconda. The existence of an unfinished portrait as reported by Giorgio Visari.... why is the possibility of Leonardo having once again produced two paintings not considered seriously? One might a straight portrait from a commission, the other an allegorical masterpiece based upon that portrait and "encouraged" by Giuliano de' Medici, as mentioned by de Beatis after his visit to Leonardo in 1517. Two versions would be an elegant solution to this conundrum inelegantly addressed by today's experts.

2 Apr 12
15:34 CET

REGAN, AUCKLAND, NEW ZEALAND

Re-dating the 'completion' of La Gioconda to the year Leo left Italy for France, based on the fact that another curator dated a similar drawing 1510-15 on stylistic grounds seems absurd! First, prove which image was based on which. Otherwise this just sounds like a cheeky way to increase the value of the Windsor drawing, whilst encouraging people to take a second look and reignite debate about arguably the world's most famous and most deliberated painting. More a strategic marketing decision than one based on any real provenance.

20 Mar 12
19:27 CET

CARL, CINCINNATI

Salai, leonardo's lover, would have been 23 in 1503. The Louvre copy could have been a Leonardo copy after the Prado one and he made Salai look older. I cannot imagine the two been painted side by side. If Salai is the sitter, then it all makes sense. I think Leo has made fools of us all, painting his male lover in drag and creating the world's most famous painting depicting a drag queen. Hilarious!!

12 Mar 12
13:53 CET

DONATO, LONDON ONTARIO

The drawing of the rocky outcrop and others like it are dated to 1510 and fit with studies of the foreground and landscapr of Leonardo's painting of the same year, The Virgin and Child with St Anne and Lamb. The landscape drawings of the same period fit with the area of the Adda river near Milan, the landscape of the painting matches the Adda valley. See "Leonardo's Val di Chiana Map in the Mona Lisa", in Cartographica, 46:3, 2011.

7 Mar 12
18:48 CET

DAVINCI, CASABLANCA

Davinci will never cease to amaze us even after all these centuries.

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