The illustrations in this cosmography show its indebtedness to the Sacrobosco tradition. Barozzi, a humanist scholar who lectured at the University of Padua, provided an updated introduction to observational astronomy, intended as a replacement for Sacrobosco and Peurbach. Clavius expressed his appreciation for Barozzi’s work, but in 1587 Barozzi was convicted of necromancy by the Venetian Inquisition.