In 1617, Peter Paul Rubens embarked on an ambitious series of paintings for the Spanish royal collection, illustrating the heroic deeds of the Roman consul Decius Mus. This particular work, Decius Mus consulting the soothsayer (Livy VIII, 6-9/10), captures a pivotal moment drawn from Livy’s celebrated account of the Third Samnite War. The story’s resonance with themes of sacrifice and leadership made it especially appealing to the Habsburg patrons, who saw in Decius’s tale a mirror of their own ideals of duty and self-offering for the state. Rubens chooses the instant when Decius Mus, standing at the threshold of battle, seeks guidance from a soothsayer to interpret ominous dreams.

The consul’s tense posture, clad in Roman armor, dominates the foreground as the soothsayer gestures toward the heavens, signaling the gods’ demand for a sacrificial hero. The crowd of anxious soldiers and the darkening sky amplify the drama, while Rubens’s energetic brushwork and vibrant palette heighten the emotional charge. Unlike Andrea Mantegna’s more restrained treatment of Roman themes, Rubens infuses the scene with movement and psychological intensity, drawing the viewer directly into the suspense of the moment. The fate of this painting after its creation is somewhat obscure, as with many works from Rubens’s prolific Antwerp studio.

It was likely part of a grand decorative cycle commissioned for a Spanish palace, intended to glorify the virtues of sacrifice and courage. Over the centuries, the painting’s whereabouts have shifted with the tides of war and collecting fashion, and its precise medium remains uncertain—oil on panel or canvas, both common for Rubens at the time. Today, Decius Mus consulting the soothsayer stands as a testament to Rubens’s fascination with classical history and his ability to translate ancient legend into vivid, immediate drama.