Mediaeval fresco found in Rome church following discovery of obscure archive document.

Dating to the mid-12th century, the intact fresco was found on the counter-façade of the Church of S. Alessio and is described as being in extraordinarily good condition.

The fresco is believed to depict "St Alessio and the Pilgrim Christ", according to Claudia Viggiani, the art historian behind the sensational find. 

The section of fresco currently visible measures 90 cm wide and more than four metres high. Another portion, at least as large, is still hidden by the wall. Viggiani told ANSA that she is determined to bring it to light: "We owe it to the Romans" - she says - "and we expect more surprises."

The letter made reference to "a fresco in excellent condition", stumbled upon during works to strengthen a bell tower in Rome. The only problem was that the address of the bell tower was not mentioned.

"It took a while, but in the end I found it", Viggiani told ANSA.

The discovery was announced on 29 June, the feast of Rome's patron saints Peter and Paul.

Cover image Corriere della Sera