Featured Research

from universities, journals, and other organizations

Data support theory on location of lost Leonardo da Vinci painting

Date:
March 13, 2012
Source:
University of California - San Diego
Summary:
Evidence uncovered during research conducted in Florence's Palazzo Vecchio late last year appears to support the theory that a lost Leonardo da Vinci painting existed on the east wall of the Hall of the 500, behind Giorgio Vasari's mural "The Battle of Marciano."

Threading the endoscope into the Vasari wall to find signs of the lost Leonardo painting "The Battle of Anghiari" in Florence's Palazzo Vecchio.
Credit: Dave Yoder

Evidence uncovered during research conducted in Florence's Palazzo Vecchio late last year appears to support the theory that a lost Leonardo da Vinci painting existed on the east wall of the Hall of the 500, behind Giorgio Vasari's mural "The Battle of Marciano." The data supporting the theoretical location of the da Vinci painting "The Battle of Anghiari" was obtained through the use of an endoscopic probe that was inserted through the wall on which the Vasari fresco was painted. The probe was fitted with a camera and allowed a team of researchers, led by scientist Maurizio Seracini, to see what was behind the Vasari and gather samples for further testing.

This comprehensive research effort was led by the National Geographic Society and University of California, San Diego's (UCSD) Center of Interdisciplinary Science for Art, Architecture and Archaeology (CISA3), in partnership with the City of Florence. CISA3 is based at the UCSD division of the California Institute for Telecommunications and Information Technology (Calit2). Work conducted in Palazzo Vecchio's Hall of the 500 was completed in collaboration with the Florentine Superintendency for Cultural Heritage and the Opificio delle Pietre Dure, the Italian state art restoration center based in Florence.

Using endoscopic technology provided by Olympus and Wolff, researchers were able to view the wall behind the Vasari mural and obtain samples for analysis. The data from chemical analysis, while not conclusive, suggest the possibility that the da Vinci painting, long assumed to have been destroyed in the mid-16th century when the Hall of the 500 was completely remodeled, might exist behind the Vasari.

"These data are very encouraging," said National Geographic Fellow Maurizio Seracini, founding director of UCSD CISA3. "Although we are still in the preliminary stages of the research and there is still a lot of work to be done to solve this mystery, the evidence does suggest that we are searching in the right place."

Seracini and his team report four lines of evidence supporting the hypothesis that the lost Leonardo painting is located behind the Vasari mural:

  1. A sample containing a black material was analyzed with SEM-EDX (scanning electron microscopy with energy dispersive x-ray spectroscopy), which identifies the chemical elements present in a sample. The material found behind the Vasari wall shows a chemical composition similar to black pigment found in brown glazes on Leonardo's "Mona Lisa" and "St. John the Baptist," identified in a recently published scientific paper by the Louvre, which analyzed all the da Vinci paintings in its collection.
  2. Flakes of red material were found. Analysis of these samples seems to identify them as organic material, which could be associated with red lake (lacquer). This type of material is unlikely to be present in an ordinary plastered wall.
  3. Visual evidence obtained through high-definition endoscopic images suggests that a beige material seen on the original wall could only have been applied by a paint brush.
  4. The research team confirmed the existence of an air gap, originally identified through radar scans conducted of the Hall, between the brick wall on which Vasari painted his mural and the wall located behind it. The finding suggests that Vasari may have preserved da Vinci's masterpiece by building a wall in front of it at this location. No other location in the Hall presented this type of air gap.

Seracini, an engineer by training and now one of the world's leading experts in the field of art diagnostics, began searching for the mural more than 30 years ago. In the 1970s, he noticed the words "cerca trova" -- "seek and you shall find" -- painted in Vasari's fresco and believed it was a clue to the mystery of the lost Leonardo. Since then, Seracini has conducted laser, thermal and radar scans of the Hall to determine that the likely location of the Leonardo painting is on the selected panel.

When presented with the opportunity to conduct an endoscopic investigation through the Vasari wall, Seracini identified 14 areas to be explored. Following ongoing consultation with Opificio delle Pietre Dure officials, six points of entry were ultimately implemented. These entry points were chosen by the restorers of the Opificio delle Peitre Dure in areas free of original Vasari paint, including cracked or previously restored areas, to ensure that drilling would not cause any damage to the original Vasari mural. Opificio delle Pietre Dure officials conducted the drilling, which then allowed Seracini's team to insert the camera, view the wall behind the mural and obtain samples. Testing on those samples was conducted with portable instruments on the scaffolding itself, in the Florence-based Editech lab and in Pontlab, a private analytical lab in Pontedera, Italy.

"Given that the points of actual entry were on the periphery of our original area of focus, the results we obtained are particularly encouraging," said Seracini.

In 1503, da Vinci was commissioned by Gonfaloniere Piero Soderini to paint the "The Battle of Anghiari" in the Hall of the 500 of the Palazzo Vecchio, the seat of government in Florence. The painting commemorated the 1440 victory of the battle on the plain of Anghiari between Milan and the Italian League led by the Republic of Florence. The Florentines emerged from the conflict as the most important power in central Italy, re-establishing Papal powers and dominating Italian politics for years to come.

Da Vinci used the commission as an opportunity to experiment with new mural techniques, which did not meet with the results he had hoped for, but nonetheless, this masterpiece was later called "the school of the world." In the mid-16th century Giorgio Vasari, himself an admirer of da Vinci's work, enlarged and completely remodeled the Hall and painted six new murals over the east and west walls, possibly hiding the Leonardo masterpiece. Original documents confirm eyewitness accounts of viewing "The Fight for the Standard," the portion of "The Battle of Anghiari" that was completed by Leonardo.


Story Source:

The above story is based on materials provided by University of California - San Diego. Note: Materials may be edited for content and length.


Cite This Page:

University of California - San Diego. "Data support theory on location of lost Leonardo da Vinci painting." ScienceDaily. ScienceDaily, 13 March 2012. <www.sciencedaily.com/releases/2012/03/120313122458.htm>.
University of California - San Diego. (2012, March 13). Data support theory on location of lost Leonardo da Vinci painting. ScienceDaily. Retrieved August 21, 2014 from www.sciencedaily.com/releases/2012/03/120313122458.htm
University of California - San Diego. "Data support theory on location of lost Leonardo da Vinci painting." ScienceDaily. www.sciencedaily.com/releases/2012/03/120313122458.htm (accessed August 21, 2014).

Share This




More Matter & Energy News

Thursday, August 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Flower Power! Dandelions Make Car Tires?

Flower Power! Dandelions Make Car Tires?

Reuters - Business Video Online (Aug. 20, 2014) Forget rolling on rubber, could car drivers soon be traveling on tires made from dandelions? Teams of scientists are racing to breed a type of the yellow flower whose taproot has a milky fluid with tire-grade rubber particles in it. As Joanna Partridge reports, global tire makers are investing millions in research into a new tire source. Video provided by Reuters
Powered by NewsLook.com
Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Newsy (Aug. 19, 2014) Scientists have developed a new device that mimics the way octopuses blend in with their surroundings to hide from dangerous predators. Video provided by Newsy
Powered by NewsLook.com
Researcher Testing on-Field Concussion Scanners

Researcher Testing on-Field Concussion Scanners

AP (Aug. 19, 2014) Four Texas high school football programs are trying out an experimental system designed to diagnose concussions on the field. The technology is in response to growing concern over head trauma in America's most watched sport. (Aug. 19) Video provided by AP
Powered by NewsLook.com
Green Power Blooms as Japan Unveils 'hydrangea Solar Cell'

Green Power Blooms as Japan Unveils 'hydrangea Solar Cell'

AFP (Aug. 19, 2014) A solar cell that resembles a flower is offering a new take on green energy in Japan, where one scientist is searching for renewables that look good. Duration: 01:29 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins