A detailed etching by Antonio Tempesta depicting the eighth labour of Hercules as he subdues the man-eating mares of Diomedes.

This etching by Antonio Tempesta depicts the eighth labour of Hercules, in which the hero captures the man-eating mares of the Thracian king Diomedes. Tempesta, a Florentine artist known for his prolific output in printmaking, captures the physical struggle between the muscular hero and the powerful animals. Hercules is shown wearing his characteristic lion skin, his posture conveying the exertion required to subdue the rearing horse. The composition is typical of Tempesta's narrative style, which often focuses on dynamic movement and classical themes.

The background features architectural elements and a fallen figure, likely representing the defeated king, which adds a sense of immediate consequence to the scene. Tempesta utilised a dense system of cross-hatching to define the musculature of the figures and the texture of the horses' coats. This technique creates a sense of volume and depth within the frame, despite the relatively small scale of the original print. The work reflects the interest in classical mythology that permeated the Italian Baroque period, where artists frequently revisited the exploits of ancient heroes to explore human strength and conflict.

As a printmaker, Tempesta was highly influential in the dissemination of classical iconography across Europe. His ability to render complex anatomical forms and dramatic action made his work popular among collectors and other artists of the seventeenth century. This print offers a clear view of his technical approach to etching, where the lines are used to build both form and shadow. It remains a representative example of his skill in translating literary accounts of antiquity into visual narratives. The print is presented here with the clarity of the original plate, allowing for an examination of the artist's mark-making and his approach to the dramatic tension inherent in the myth.