Jan Janssonius, real name Jan Janszoon, was a Dutch cartographer, printer and publisher. He built the publishing house of his father-in-law, Jodocus Hondius, into one of the largest in Europe. With his brother-in-law Henricus Hondius ( 1597 – 1651), real name Joost de Hondt and Dutch cartographer, he had a partnership until 1638.
- Image: beautiful, large, colored engraving of Overijssel and Drenthe. From the atlas Gerardi Mercatoris et J. Hondii. Atlas Novus, sive Descriptio Geographica Totius Orbis Terrarum, Tabulis Aeneis Luculentissimis & Accuratissimis Exornata, Tribus Tomis Distictus
- year: ca. 1638
- quality: excellent
- signed: printed in plate
- image size: 38.7 x 49.6 cm | 15.2 x 19.5 in (h x w)
- sheet or frame size: 46.3 x 55.7 cm | 18.2 x 21.9 in (h x w)
