Conservation France

Anger over Louvre’s plan to clean a Leonardo

Specialists fear artist’s “smoky finish” effect may be harmed

The Virgin and Child with Saint Anne, 1508

paris. Conservators approach works by Leonardo da Vinci at their peril for fear of creating a storm—especially in France. The Louvre’s latest attempt to conserve a masterpiece by the artist, The Virgin and Child with Saint Anne, 1508, has yet again sparked a wave of debate about cleaning paintings, even if they are dirty and discoloured.

The proposal to clean the work was first mooted at a two-day conference held at the Louvre in June 2009, attended by key Leonardo scholars such as Martin Kemp, emeritus professor at the University of Oxford. “The event at the Louvre was a genuine scholarly exercise. The work is tricky; there are some rather nasty scars and very ugly, discoloured retouching,” he says. “It’s not just a question of cleaning off the dirt but ensuring that the internal colour balance is not disturbed.”

Previous restoration attempts have also proved controversial. According to our sister paper Le Journal des Arts, the Louvre abandoned plans to conserve the work in 1994 because the solvents used to remove varnish risked damaging the paint layers beneath. In autumn 2010, the Louvre decided to try again, this time backed by a scientific committee made up of specialists, including Larry Keith of the National Gallery in London, who last year restored Leonardo’s The Virgin of the Rocks (around 1491-1508). Vincent Pomarède, the project leader and keeper of paintings at the Louvre, said that the aim was “to solve the problem of the thick varnish that pulls on the paint layers, creating an uneven surface”. Pomarède’s solution involves thinning the layers applied in the 19th and 20th centuries, leaving a film of varnish eight to 12 micrometres thick, rising to 25 micrometres across the faces of the figures.

This strategy, which would still involve the use of solvents, raises fears that the sfumato, Leonardo’s “smoky finish” effect, could be compromised. Michel Favre-Félix, the president of the Association for the Respect and Integrity of Artistic Heritage, is concerned, saying: “Leaving a layer of varnish is preferable but the deep infiltration of the solvents is the core issue. The varnish and sfumato are so closely allied [that] we must ascertain, before moving ahead, whether the sfumato will be harmed by the solvents.”

Pomarède insists his approach is safe: “At no point will we be in contact with the paint layers… the restoration is essential if we want to preserve this masterpiece, which is under threat because of the raised micro-blemishes on the surface. These are due to the oxidised varnish layers.” He adds that his restoration processes were discussed and approved during the Louvre conference. Italian art historian Pietro Marani, who is on the scientific committee, says that the painting is not in jeopardy. Kemp adds: “If the Louvre proceeds in the way it suggests, I envisage no problems.”

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Comments

21 Jun 12
16:6 CET

DAVINCI, DHAKA

Having lived until the age of 67, Leonardo experienced a very long career that was filled with times during which the painter was celebrated, but at times he was also humiliated and cast away. His life experiences all influenced his works and often, his paintings never left the sketchpad, or were only partially completed, as Leonardo often abandoned his commissions in order to flee from social situations.

10 Nov 11
16:21 CET

LUIS ADAWI, LIMA, PERÚ

The technical problem of cleaning can be relegated to the background because, in my opinion, this discussion has two irreconcilable fronts: conservation vs. restoration. Each one attempts to argue their position without the ability to link proposals for the preservation of the painting. It is unthinkable that there are such different positions, Pietro Marani ensures that the canvas is not in danger So, why so much discussion? Under this alternative the only thing left is to let the preventive maintenance work slow down the degradation process. Is this the right thing? I don't think so.

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