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Roman fresco unearthed in London

An ornate fresco that once adorned the residence of a wealthy Roman citizen has been discovered by a team of archaeologists at 21 Lime Street, in London.

Roman fresco unearthed in London
A section of a decorative fresco, dating to the 1st-century AD 
Roman Britain [Credit: (c) MOLA]
Archaeologists from the Museum of London Archaeology (MOLA) uncovered the fresco six metres below street level, whilst undertaking archaeological fieldwork for a new office development. Dating to the late 1st century AD, and the first decades of London, it is one of the earliest surviving frescos from Roman Britain.

Thanks to a huge Roman construction project, the fate of this rare wall painting was literally sealed in the ground. In AD 100, construction of the 2nd Forum Basilica, the main civic centre for the city and the largest Roman building ever built north of the Alps, began. In advance of construction of the Forum the area was flattened. The painted wall was deliberately toppled and the Forum immediately built over it, incredibly preserving the fresco for nearly 2000 years.

Roman fresco unearthed in London
The Roman fresco is more than 2m wide and 1.5 metres high 
[Credit: (c) MOLA]
Discovered face down, the fresco was identified from the distinctive markings of the keyed daub onto which the plaster was attached. The fragile remains, surviving to a width of nearly 2.5 metres and a height of over 1.5 metres, were carefully removed from the site by archaeological conservators, who lifted the fresco in 16 sections.

Each section was supported, undercut and block lifted so that soil encased and protected the plaster. Back in the lab the conservators worked quickly to micro-excavate the soil whilst it was still damp, to expose the millimetre-thin painted surface beneath.

Roman fresco unearthed in London
Conservators from MOLA removing a section of the 1st century 
upturned Roman wall plaster [Credit: (c) MOLA]
The painting is likely to have decorated a reception room where guests were greeted and entertained. Building materials specialists will study the elaborate fresco further to learn more about the fashions and interiors favoured by London’s first wealthy citizens.

The central section, on a background of green and black vertical panels, depicts deer nibbling trees, alongside birds, fruit and a vine woven around a candelabrum. Red panels, bordered with cream lines, surround the main decorative scheme.

Roman fresco unearthed in London
Tiles that sat below the London's Roman Forum 
in the 2nd-century [Credit: (c) MOLA]
The fresco was hand-painted by a skilled artist in natural earth pigments, except one area of red on the twisting vine stem which is picked out in cinnabar, an expensive mercuric sulphide pigment that had to be mined in Spain.

Fascinatingly, a slight error in the design reveals that the craftsman who painted the fresco made a mistake. It suggests that there was more than one person painting the wall and that they may have been working to a pre-prepared template. The mistake could only have been corrected by repainting the whole middle panel.  

Roman fresco unearthed in London
MOLA archaeological conservator, Luisa Duarte, a section 
of decorated Roman wall [Credit: (c) MOLA]
Although small fragments of Roman wall plaster have been found in London, complete collapsed wall paintings are extremely rare and the 21 Lime Street example is one of the earliest known from Britain. This design scheme has not previously been seen in Roman Britain; the closest example comes from a Roman villa in Cologne, Germany.

Specialists from MOLA continue to study the fresco and archaeological records from the dig and hope to build a picture of what the area looked like in the Roman period and how it developed over almost 2,000 years of London’s history.

Source: MOLA [February 03, 2016]

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