Baldi, Gerardo an Italian theologian, native of Florence, taught logic and theology at Pisa, became counsellor of the Inquisition, then dean at Florence. He died Oct. 17, 1660. He wrote, Rerum Actualitas in Ordine ad Motumr; Physica Disquisitio (Florence, 1642-44): — Dialecticoe institutiones: — and Novce Opinandi Rationes. See Hoefer, Nouv. Biog. Generale, S.V.