Amphion and Zethus were twin brothers in Greek mythology, born to Zeus and Antiope. They are celebrated as the legendary founders of the city of Thebes. According to tradition, the brothers were responsible for the construction of the city's massive defensive walls.
The twins are central to one of the two primary founding myths of Thebes. Their legacy is also tied to the city's geography and nomenclature, as the Neitian gate was reportedly named after Neis, a daughter of one of the brothers. Their story highlights the importance of heroic figures in the foundational narratives of ancient Greek city-states.