For more than half a century, international art scholars spoke of the Blaquier-Arrieta collection in hushed, almost legendary tones. Behind the closed doors of private residences in Buenos Aires and Paris, Argentine industrialist Carlos Pedro Blaquier and his wife Nelly Arrieta de Blaquier assembled what curators frequently described as an almost mythical miniature Musée d'Orsay.
On November 18, 2026, that five-decade veil of privacy lifts at Sotheby's New York. The auction house will put twelve museum-grade Impressionist and Post-Impressionist masterworks on the block, carrying a staggering overall estimate exceeding $450 million. The announcement sent shockwaves through global auction circles, marking the sudden public emergence of a trophy collection long assumed to be permanently tucked away.
To launch the international preview tour, Sotheby's London gallery put five key canvases on public view, giving art historians their first direct look at works that had previously existed only as black-and-white archive photography or secondary citations in academic texts.
Van Gogh's Final Spring in Auvers
The undisputed centerpiece of the collection is Vincent van Gogh's Châtaigniers en fleurs (Chestnut Trees in Blossom). Painted in May 1890 during the painter's final two months in Auvers-sur-Oise, the canvas captures a field of heavy green foliage and golden blossoms stretching beneath a stormy, agitated sky.
Sotheby's has assigned Châtaigniers en fleurs an estimate of $180 million. If bidding meets that benchmark, the sale will comfortably break the previous auction record for Van Gogh, established in 2022 when Paul Allen's Verger avec cyprès fetched $117.1 million.
What gives Van Gogh's Auvers period its peculiar intensity is the sheer speed of execution. Between his arrival in May 1890 and his death in July, Van Gogh produced more than seventy canvases in seventy days, laying down thick, rhythmic impasto that seemed to vibrate off the fabric surface.
Cézanne's Solitary Harlequin
Equally extraordinary is Paul Cézanne's late masterpiece Arlequin, executed between 1888 and 1890. Carrying a presale estimate of $120 million to $150 million, the painting belongs to Cézanne's celebrated four-canvas series depicting Commedia dell'arte performers in bold red-and-black diamond costumes.
The other three canvases in the quartet reside permanently in elite public institutions: the National Gallery of Art in Washington, the Metropolitan Museum of Art in New York, and the Rothschild collection at the Musée d'Orsay in Paris. Detailed documentation from the Metropolitan Museum of Art highlights how Cézanne transformed theatrical figures into rigorous explorations of geometric volume and architectural weight.
The Blaquier-Arrieta Arlequin is the sole work from the series remaining in private hands. Its appearance on the market offers collectors a once-in-a-generation opportunity to acquire a canvas that fundamentally bridges 19th-century realism and 20th-century Cubism.
An International Tour for Hidden Masterpieces
Beyond the twin peaks of Van Gogh and Cézanne, the consignment includes museum-grade compositions by Claude Monet, Edgar Degas, Paul Gauguin, Pierre-Auguste Renoir, and Camille Pissarro.
As comprehensive coverage in The Art Newspaper details, the sale stands as one of the largest single-owner Impressionist offerings since the landmark David Rockefeller and Paul Allen auctions.
According to analysis published by The Guardian, the preview tour moves from London across East Asia before ending in Manhattan for the evening sale. A dedicated Guardian Video Feature captured the quiet reverie of visitors seeing these long-hidden surfaces illuminated under gallery track lights for the very first time.
From Private Living Rooms to New Vaults
There is a poignant rhythm to private collection sales of this scale. Canvases that spent half a century hanging quietly in family dining rooms briefly step into the public gaze, allowing scholars to inspect raw brushwork and verify provenance, before disappearing again into new private collections or climate-controlled vaults.
For art lovers who cannot enter nine-figure bids at Sotheby's, the spirit of these moments remains accessible through high-fidelity prints and museum retrospectives. Exploring Meron's curated Post-Impressionism collection offers a direct connection to that same explosive period when Van Gogh and Cézanne broke open modern visual language.
When the gavel falls in New York on November 18, financial records may be rewritten. Yet the true significance of the Blaquier-Arrieta sale is the rare, fleeting moment these hidden treasures were brought into the light.
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