Sotheby's Lists Rare £5 Million Altdorfer Renaissance Landscape Unseen for 70 Years

A microscopic Renaissance oil painting that vanished into private hands nearly seven decades ago will go under the hammer in London this winter, carrying an upper estimate of £5 million.

Sotheby's announced that the circa-1520 work by German pioneer Albrecht Altdorfer—titled A Thickly Wooded Landscape With a Rainbow Behind the Trees and a Distant Outcrop to the Right Beneath a Cloud-Laden Sky—will lead its Old Masters Evening Sale on December 9, 2026. The auction marks the first time an Altdorfer original has surfaced on the commercial market since 1980, when the National Gallery in London privately acquired his Christ Taking Leave of His Mother for £2.4 million. The newly authenticated panel measures just 23.4 by 19.8 centimetres. Yet its rediscovery reshapes Northern Renaissance scholarship. It represents only the third known pure oil landscape by Altdorfer in existence.

Both sister works hang locked inside state institutions—one at the National Gallery in London, the other at Munich's Alte Pinakothek. That leaves this newly surfaced limewood panel as the only privately held oil landscape from the master who wrested natural scenery away from purely biblical backdrops. Sotheby's Worldwide Old Masters Department chairman George Gordon characterised the canvas as "one of the most exciting discoveries imaginable in our field," noting that institutional bidders are expected to challenge private collectors aggressively.

Provenance From Vienna to Private Swiss Vaults

Before disappearing from scholarly view, the painting belonged to the storied collection of the Austrian noble House of Harrach in Vienna. A Swiss collector's father acquired the work directly from the noble estate in 1957. And there it stayed. The family kept the miniature untouched and unexhibited across two generations, leaving it absent from Altdorfer's official catalogue raisonné until authenticators verified the artist's double-A monogram etched into the trunk of a painted larch tree earlier this year.

The physical composition captures a tempestuous forest under dense cloud cover, pierced by a rainbow flanking a jagged cliff and a fortified castle. Executed in oil on parchment later laid down on panel, the scene demonstrates Altdorfer's radical Danube school technique—ditching religious narrative to treat raw topography as independent high art.

Public viewings open at Sotheby's Manhattan galleries from November 7 through November 19, before the panel crosses the Atlantic for a final London exhibition beginning December 4 ahead of the December 9 evening sale.