He lived first in Florence where he compiled astrological tables and produced his first revision of Ptolemy's Geography in 1466. He later moved to Rome where created a pair of globes and a world map for the Vatican Library in 1477.
He started his residence in Florence, compiling astrological tables and producing his first revision of Ptolemy's Geography in 1466. Following this, he moved to Rome, where he created a pair of globes and a world map for the Vatican Library in 1477.