Jan Janssonius

In 1612 he married Elisabeth de Hondt, the daughter of Jodocus Hondius and Colette van den Keere.

In 1623 Janssonius owned a bookstore in Frankfurt am Main, later also in Danzig, Stockholm, Copenhagen, Berlin, Königsberg, Geneva and Lyon.

In 1646, a fourth volume came out with "English County Maps", a year after a similar issue by Joan Blaeu.

After Janssonius's death, the publishing company was continued by his son-in law, Johannes van Waesbergen.

The London bookseller Moses Pitt attempted publication of the Atlas Major in English, but ran out of resources after the fourth volume in 1683.