When Joseph Mallord William Turner unveiled Jason in 1802 at the Royal Academy, critics were startled by its boldness and ambition—this was Turner’s first major foray into mythological narrative, a departure from his familiar landscapes. The painting was exhibited alongside works by established history painters, signaling Turner’s determination to be seen as their equal. Its reception was mixed: some praised its drama, while others found its coloring and composition unconventional.

The work’s audacity marked a turning point in Turner’s early career, as he staked his claim to the grand tradition of history painting. The painting captures the moment from the ancient Greek myth when Jason, having lulled the dragon with Medea’s enchanted potion, seizes the Golden Fleece. In Turner’s vision, Jason stands triumphant in a wild, fiery landscape, the monstrous serpent collapsed at his feet, its coils echoing the turmoil of the scene. The fleece itself glows with an unnatural radiance, drawing the eye to the prize that has cost so much suffering.

Medea, barely visible, is a shadowy presence, emphasizing Jason’s isolation at the climax of his quest. Unlike Luca Giordano’s more theatrical Jason and the Golden Fleece, Turner’s version is suffused with elemental chaos, the landscape itself writhing with energy, blurring the boundaries between hero and environment. The exact medium Turner used for Jason is uncertain, though it is generally believed to be oil on canvas, in keeping with his major works of the period. The painting’s early provenance is not fully documented, but it was exhibited at the Royal Academy in 1802 and remained in Turner’s possession for much of his life, as was his custom with major pieces.

Today, Jason is held by the Tate in London, where it is recognized as a key work in Turner’s development from topographical painter to visionary interpreter of myth and nature. Its daring composition and tumultuous energy foreshadow the later, more experimental canvases that would secure Turner’s reputation as one of the most original artists of the Romantic movement.