Fra Mauro, O.S.B. Cam., (c.1400–1464) was a Venetian cartographer who lived in the Republic of Venice. He created the most detailed and accurate map of the world up until that time, the Fra Mauro map. Mauro was a monk of the Camaldolese Monastery of St. Michael, located on the island of Murano in the Venetian Lagoon. It was there that he maintained a cartography workshop. He also was employed by some very powerful men like Prince Henry the Navigator.