Polychromy under Limewash: Conservation Choice in a Rural Church
The parish priest of a small Romanesque church in inland Lugo wants the interior 'returned to its original appearance'. On the north wall, a late-12th-century relief of the Anastasis has been covered by at least three campaigns of limewash; the latest, from the 18th century, includes painted faux marbling and a now-faded inscription. In raking light, conservators find traces of original polychromy-red ochre, yellow earth, and a copper-based green-only in deep recesses and under a projecting moulding. The community has raised €18,000, enough for either full removal of later layers or stabilization and controlled display, not both. A local heritage group argues that exposing the medieval colour will boost tourism; the conservator warns that most original pigment is already lost and that removal will leave a patchy surface. The priest asks for a decision and a label that explains the result.
1. Evaluate the conservation options. Which treatment is ethically and technically preferable, and why?
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Full removal is the weaker option. The surviving medieval pigment is fragmentary and confined to recesses, so removing all later layers would not reveal a coherent 'original' surface; it would produce a damaged, patchy relief with isolated colour traces that are hard to read and easy to misinterpret. The limewash campaigns are also part of the object's history, not simply dirt. Removing them destroys evidence of later devotional use, including the 18th-century faux marbling and inscription, which may be locally significant even if they are not medieval.
Stabilization and controlled display are preferable: consolidate vulnerable edges, reduce salts and moisture, and use raking light or a small controlled exposure area to show where medieval colour survives. If the community wants an interpretative experience, a digital reconstruction or a sample window can communicate the original polychromy without sacrificing the later layers. The €18,000 should not be spent on aggressive stripping that cannot be reversed. The decision should be recorded in a condition report, and the treatment should be reversible where possible. This approach respects the relief as a layered document rather than as a single-period image.
2. Draft a short label that explains the layered history without promising a 'restored original'.
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Suggested label: 'The Anastasis relief was carved in the late 12th century and originally painted. Traces of red, yellow, and green pigment survive in protected recesses. In the 18th century the wall was limewashed and decorated with faux marbling and an inscription; these later layers are now part of the object's history. The present display conserves the surviving evidence rather than reconstructing a lost original. Colour reconstruction is shown separately for comparison.' This wording avoids the phrase 'restored to its original appearance', which would overpromise. It names what survives, what was added later, and what the visitor is actually seeing.
The label should also explain why the surface is uneven: loss is evidence, not failure. If a digital reconstruction is used, it must be clearly labelled as an interpretation, not as the actual surviving paint. The priest and heritage group can be told that the label turns uncertainty into an educational asset: visitors learn that medieval churches were painted, that later communities altered them, and that conservation is a decision-making process. This meets the tourism aim without treating the building as a theme-park restoration.