Commissioned as part of a grand cycle for the Hall of Realms in Madrid’s Buen Retiro Palace, Hercules Separates Mounts Calpe and Abylla by Francisco de Zurbarán stands among a series of ten monumental canvases dedicated to the Labors of Hercules—an allegorical celebration of royal power for King Philip IV of Spain in 1634. This ambitious program placed the mythical hero at the heart of Spanish identity, aligning the monarchy with strength and virtue. The choice of Hercules was no accident: his legendary feats resonated with the Habsburgs’ imperial aspirations, and the Pillars of Hercules, as depicted here, symbolized the very limits of the known world and the ambitions of empire. At the dramatic center of the painting, Hercules, muscles taut and face contorted with effort, wrenches apart two mountainous masses—Mount Calpe (Gibraltar) and Mount Abylla (Ceuta)—to create the Strait of Gibraltar, opening the Mediterranean to the Atlantic.

Zurbarán captures the hero at the climax of exertion, arms outstretched, as rocky forms seem to yield to his will. The stormy sky and tumultuous landscape amplify the sense of struggle, while Hercules’ lion skin and club, traditional attributes, anchor him in myth. Unlike Rubens’ energetic, swirling compositions of Hercules, Zurbarán’s figure is monumental and solitary, embodying stoic endurance rather than frenzied action. After its creation, Hercules Separates Mounts Calpe and Abylla remained in the Buen Retiro Palace, surviving the turbulence of the Peninsular War and the dispersal of many royal treasures.

The painting, like the rest of the Hercules series, marks a rare foray into mythological subject matter for Zurbarán, who is better known for his meditative religious works. Today, the canvas hangs in the Museo del Prado, a testament to both the artist’s versatility and the political ambitions of seventeenth-century Spain. Its survival and prominent display offer a window into the ways art, myth, and monarchy intertwined during the Spanish Golden Age.