Map of Guandong (China) taken from the Atlas van der Hagen, Koninklijke Bibliotheek, The Hague, part 4. This map of the Chinese province of Guandong, which also depicts today's Hong Kong, belongs to an atlas of China compiled by the Italian missionary Martino Martini (1614-1661). On his return journey to Rome in 1653 Martini stopped off in Amsterdam, where he sold his atlas to the publisher Joan Blaeu (1598-1673). From 1655 onwards Blaeu published this atlas in various languages under the title 'Atlas Sinensis'. The atlas was also incorporated in its entirety into Blaeu's Atlas Maior in 1662.