Portrait of Juan Martínez Montañés

Executed in oil on canvas, this unfinished portrait measures 109 cm by 88 cm. Velázquez employed fluid, distinct brushstrokes with meticulous care across most of the composition, particularly in the rendering of the subject's formal black silk cape, doublet, and white ruffled collar and cuffs. The artist concentrated light and visual interest on the sculptor's face and his active hand shaping a clay bust with a modeling tool. In contrast to the polished finish of the figure, the clay bust of the king remains a mere outline or sketch, reflecting the work's incomplete state. This selective finish elevates the subject's status while capturing a moment of artistic creation.

Painted by Diego Velázquez between 1635 and 1636, the work depicts the sculptor Juan Martínez Martínez Montañés during his visit to Madrid. The portrait was created while Montañés was commissioned to fashion a clay bust of King Philip IV, which served as a modello for the Florentine sculptor Pietro Tacca to produce a bronze equestrian statue. Most art historians date the painting to the period between June 1635 and January 1636, coinciding with Montañés' stay at the royal court, though some have suggested the subject might be Alonso Cano.

The painting remains unfinished, showing the sculptor shaping the clay bust with a stick. Historically, the work entered the Spanish royal collection and is currently held by the Museo del Prado in Madrid.

The painting is held in the collection of the Museo del Prado, Madrid.

It is inventoried as oil on canvas, 109 cm × 88 cm, accessioned to the Prado’s holdings where it is displayed in Hall 012.

Its exhibition history includes inclusion in the 2023 exhibition “Velázquez, The Golden Century: The Age of Velázquez.”

Scholarly consensus identifies the sitter as Juan Martínez Montañés, though some historians have proposed Alonso Cano as an alternative subject. The work is situated within the context of Montañés's 1635 visit to Madrid to create a clay modello of Philip IV for Pietro Tacca's bronze equestrian statue. Velázquez, then 36, depicted the 67-year-old sculptor to elevate his social standing from craftsman to nobleman, dressing him in formal black attire with white cuffs.

This portrayal reflects the professional relationship between the two artists, furthered by their shared connection to Francisco Pacheco, who had previously polychromed Montañés's sculptures. The portrait remains unfinished, with the king's bust rendered only as an outline, yet it is noted for the dynamic rendering of the sculptor's hand and the fluid execution of the garments.

Diego Velázquez’s portrait of the Spanish sculptor Juan Martínez Montañés dates to around 1635. Executed in oil on canvas, the work remains unfinished, revealing the artist’s process through visible underdrawing and incomplete modeling. Today the painting belongs to the collection of the Museo del Prado in Madrid, where it is displayed among other works from the 17th‑century Spanish court.