When Edgar Degas painted Portrait of Diego Martelli in 1879, he was capturing not only a friend but a key figure in the European art world. Martelli, an Italian critic and champion of the Macchiaioli painters, was visiting Paris at the time, and Degas’s depiction of him became a quiet record of the crosscurrents between French Impressionism and Italian modernism. The portrait is notable for its unusual composition: Martelli is shown in an uncharacteristically informal pose, legs stretched out, lost in thought—a stance that sparked comment among Degas’s contemporaries for its frankness and psychological depth. Martelli sits slouched in a wooden chair, his body turned away from the viewer, head propped on one hand, as if caught mid-reverie.

The room is sparse, with only a few books and papers scattered nearby, emphasizing the intellectual life of the sitter. Degas’s brushwork is loose and searching, especially in the rendering of Martelli’s hair and beard, echoing the experimental approach of the Impressionist circle. Unlike the more formal, upright portraits of the era—such as Manet’s Portrait of Emile Zola—Degas chooses to show Martelli at rest, suggesting both the fatigue and the restless energy of a man deeply engaged in the debates of his time. The painting’s early history is not fully documented, but it is known that Degas kept it in his studio for many years, perhaps reluctant to part with this intimate image of a friend.

It was eventually acquired by collectors who recognized its importance as a record of the artist’s circle and the intellectual ferment of late 19th-century Paris. Today, Portrait of Diego Martelli is seen as a turning point in Degas’s portraiture, marking his move toward more informal, psychologically complex depictions. Its place in the artist’s oeuvre is secure, standing as a testament to the friendships and artistic exchanges that shaped modern art.