Which Greek hero fought and killed the Marathonian Bull?

Theseus fought and killed the Marathonian Bull. In Greek myth, this monstrous animal ravaged the countryside around Marathon after being released by Eurystheus. Theseus undertook the dangerous task while returning to Athens and successfully captured the beast, bringing it back to the city for sacrifice.

The bull is linked to Heracles’ earlier labour. Heracles had captured the Cretan Bull, a creature associated with Poseidon and the Minotaur’s parentage, and delivered it to Eurystheus. After its release, it wandered to Marathon, where it became the animal later defeated by Theseus. This connection can make the two heroes easy to confuse.

Theseus’s victory over the bull was one of several heroic deeds performed before his more famous confrontation with the Minotaur. On his journey from Troezen to Athens, he also defeated bandits such as Procrustes and Sinis. The Marathon episode helped establish him as a protector of Attica and preceded his recognition by his father, King Aegeus.