
A long-hidden South American art collection featuring works by some of the world’s most renowned Impressionist and post-Impressionist artists is heading to auction in New York.
The works belonged to the late Argentine collectors Nelly Arrieta de Blaquier and her husband, sugar magnate Carlos Pedro Blaquier. Their children are now selling the paintings.
The collection has remained largely out of public view, with its owners rarely lending the works for exhibitions. Its contents include paintings by Vincent van Gogh, Paul Cézanne, Claude Monet, Camille Pissarro, Edgar Degas, and Pierre-Auguste Renoir.
The full group of 12 works is collectively valued at almost $500 million.
Van Gogh’s “Chataigniers en fleurs,” or “Chestnut Trees in Flower,” has an estimate of $180 million. The 1890 landscape was painted after Van Gogh left a psychiatric asylum in May of that year, shortly before his death.
Cezanne’s “Arlequin” is estimated at $120 million. The painting depicts Cezanne’s son dressed as the Harlequin character and belongs to a group of four related works. The other three are held by major museums.
The collection also includes Paris scenes by Monet and Pissarro, a horse-racing scene by Degas, and a boating scene by Renoir.
Sotheby’s is preparing for international interest in the November 18 sale, with potential buyers expected from North America, Europe, the Middle East, and Asia.
The auction house says the collection’s rarity could attract collectors looking for established works by major artists amid broader economic and geopolitical uncertainty.
Impressionism emerged in France during the late 19th century, with artists such as Monet and Renoir emphasizing light, movement, and everyday scenes rather than the formal academic conventions dominant at the time. Post-Impressionists, including Van Gogh and Cezanne, later developed different approaches to color, structure, and expression.
Private collections of this scale and quality rarely reach the market as a group. The prolonged absence of these works from public exhibitions has also limited knowledge of the collection outside specialist circles.
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