Nicolò de' Barbari active in Venice in the first half of the 16th Century

The painting has been relined and the surface is stable. The painted surface has not been cleaned and restored for a very long time and is not in very good condition. there are some visible retouchings throughout the composition, some of them possibly masking old tears. Some areas do remain in good condition like the head of the figure on the left and some parts of the dress of the virgin. The painting under U.V. reveals the afore mentioned retouchings plus further retouchings throughout the composition.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.

Nicolò de' Barbari was, as his name suggests, a follower of Jacopo de' Barbari.  Berenson listed a small group of works by the artist, including a signed Christ and the Adulterous Woman in the Palazzo Venezia, Rome.  For a more recent discussion, please see Enrico dal Pozzolo, "Nella Selva di Nicolò de' Barbari," Saggi e Memorie di Storia dell'arte, vol. 18, 1993. 

We are grateful to Everett Fahy for identifying this painting as a work by Barbari.