The most credited hypothesis places the shrine in Orvieto. The "Urbs Vetus" of the Middle Ages is identified with the Etruscan Velzna by scholars, the Latin Volsinii, conquered by the Romans in 264 BC. Livy, Pliny, Florus, Horace, Metrodorus of Scepsis, all belonging to the 2nd century BC, clearly speak of ancient Volsinii, but never in relation to the Fanum Voltumnae. In the late 19th-century archaeologists uncovered parts of the walls and found large quantities of earthenware, and based on these findings in 1930s the archeologist Geralberto Buccolini set out the hypothesis that the Fanum was situated at the foot of Orvieto's tuff In particular, the Temple of Belvedere was discovered and identified as the Temple of Nortia.