1715-1766.
Chief surveyor in Hudiksvall. [Sveriges sjökartor – A. Hedin]
1588-1664.
In 1612, married one of cartographer Jodocus Hondius's daughters and began working as a publisher in Amsterdam. From 1616 until his death, Janssonius published numerous maps of various parts of Europe. From the 1630s, he worked in partnership with his brother-in-law Henricus Hondius.
Sveriges sjökartor – A. Hedin.
Bland arbeten.
Encyclopédie ou dictionnaire universel raisonné des connaissances humaines.
Amiral Häggs flaggkarta. - Stockholm 1888.