Antonio Santucci (Pomarance, Pisa 16th century - mid-17th century), reader in mathematics at the University of Pisa from 1599, was astronomer to the Medici court for a long time, in the service first of Ferdinand I and then of Cosimo II. He observed comets, especially that of 1582, and composed a treatise in which he held that they were not atmospheric phenomena, as was generally thought at the time. Some astronomical manuscripts of Santucci have survived. A treatise on mathematical and topographical instruments conserved in the Medici Guardaroba at the end of the 16th century is also attributed to him.
Armillary Sphere, Signed by Antonio Santucci, Florence, Constructed 1588 to 1593 (Firenze, IMSS)