Petrus Bertius (1565-1629)

Petrus Bertius, born at Beveren, Flanders, in 1565, was related to Pieter van den Keere (Kaerius) and Jodocus Hondius. Both famous cartographers were brothers-in-law of Petrus Bertius. As a refugee, he settled in Amsterdam, and after finishing his studies, he became a professor of mathematics and librarian at the University of Leiden. In 1618, he became a cosmographer and historiographer for Louis XIII of France. He lived in Paris, where he died in 1629.
Petrus Bertius's remarkable work ethic is evident in the numerous geographical and theological works he produced. His contributions to the works of Clüver and Herrera further solidified his reputation in geography.
His fame among geographers was established by his text in the pocket atlas Tabularum Geographicarum and by his edition of Ptolemy’s Geographia.
The origin of the Tabularum Geographicum lies in the well-known miniature atlas Caert thresoor, published by Barent Langenes in 1598 in Middelburg. Bertius engraved 169 maps for this small but attractive atlas, sold for the first time in 1599 by Cornelis Claesz in Amsterdam. In 1600, Claesz published the pocket atlas with a Latin text composed by Petrus Bertius. From then on, new editions, often enlarged with new maps, regularly appeared, subsequently published by Cornelis Claesz, Jodocus Hondius, Johannes Janssonius and ultimately, in 1649, by Claes Jansz. Visscher.
Koeman divides this series of pocketbooks into two atlases: The Caert-thresoor, published by Langenes and Claesz., with five editions between 1598 and 1609, and the Tabularum Geographicarum Contractarum by Petrus Bertius with ten editions between 1600 and 1650.