Diotallevi, Francesco an Italian prelate and theologian, was born at Rimini in 1579. He studied at Rome, was appointed bishop of San Angelo di Lombardi at Naples, and then sent to Poland as nuncio, where he remained seven years. He died on his journey home to Rome in 1620, leaving De Concensu Dei ad Actes Liberos Voluntatis (Lyons, 1611), and a treatise De Usuria, which is in MS. See Hoefer, Nouv. Biog. Generale, s.v.