The Blaeus: Willem Janszoon, Cornelis & Joan

Willem Jansz. Blaeu and his son Joan Blaeu are the seventeenth century's most widely known cartographic publishers.

Willem Jansz. (also written Guilielmus Janssonius) = Willem Janszoon Blaeu was born in Uitgeest (Netherlands), near Alkmaar, in 1571. He studied mathematics under Tycho Brahe and learned the theory and practice of astronomical observations and the art of instrument- and globe-making.

In 1596, he came to Amsterdam, where he settled down as a globe-, instrument- and mapmaker. He published his first cartographic work (a globe) in 1599 and probably published his first printed map (a map of the Netherlands) in 1604. He specialised in maritime cartography, published the first edition of the pilot guide Het Licht der Zeevaert in 1608, and was appointed Hydrographer of the V.O.C. (United East India Company) in 1633. After publishing books, wall maps, globes, charts and pilot guides for thirty years, he brought out his first atlas, Atlas Appendix (1630). This was the beginning of the great tradition of atlas-making by the Blaeus.

In 1618, another mapmaker, bookseller and publisher, Johannes Janssonius, established himself in Amsterdam next door to Blaeu's shop. No wonder these two neighbours began accusing each other of copying and stealing their information and became fierce competitors who did not have a good word to say about each other. In about 1621 Willem Jansz. decided to end the confusion between his name and his competitor's and assumed his grandfather's nickname, 'blauwe Willem' ('blue Willem'), as the family name; after that, he called himself Willem Jansz. Blaeu.

Willem Janszoon Blaeu died in 1638, leaving his prospering business to his sons, Cornelis and Joan. We only know that Cornelis's name occurs in the prefaces of books and atlases until c. 1645.

Joan Blaeu, born in Amsterdam in 1596, became a partner in his father's book trade and printing business. 1638, he was appointed his father's successor in the Hydrographic Office of the V.O.C. His efforts culminated in the magnificent Atlas Major and the town books of the Netherlands and Italy – works unsurpassed in history and modern times, giving eternal fame to the name of the Blaeu's.

A fire ruined the business on February 23, 1672, and one year later, Dr. Joan Blaeu died. The fire and the director's passing caused the complete sale of the Blaeu House's stock. Five public auctions dispersed the remaining books, atlases, copperplates, globes, etc., among many other map dealers and publishers in Amsterdam. The majority was acquired by several booksellers acting in partnership.

In the succeeding years, the remaining printing department remained in the hands of the Blaeu family until 1695, when the printing house's inventory was sold at a public auction. That meant the end of the Blaeu family as a printing house of world renown.

Frederick de Wit (1630-1706)

The engraver and map-seller, Frederick de Wit, was born in Gouda (Netherlands) in 1630 as a son of Hendrick Fredericksz de Wit. Through his marriage with Maria van der Waag of Amsterdam in 1661, he obtained citizenship of the city where he had been working since 1648 and where he became one of the most famous engravers of maps of the second half of the 17th century. Although De Wit was a Catholic, which meant that he was not favoured at the time by the city council, he was awarded the honour of being listed as one of the "excellent citizens" on the roll of the city council in the years 1694-1704. However, his name was not written in the Guild of St. Luke book before 1664. At that time, he lived on the Kalverstraat "in de Witte Pascaert", where he stayed until his death in 1706. His earliest dates on maps engraved are 1659 (Regni Daniae) and 1660 (World map).

Frederick de Wit published several world atlases, a sea atlas, and an atlas of the Netherlands.

The dating of the maps is difficult. However, as a privilege was granted in 1689, the annotation 'cum privilegio' marks an edition after 1688.

Around 1700, Frederick de Wit entered the market with a town atlas. He produced two volumes with a total of 260 plans and views. Most were printed from plates used for Janssonius and Blaeu town atlases.

After he died in 1706, his widow continued the shop until 1709. The plates and stock of De Wit's atlas were sold to Covens & Mortier in 1710, who sold the atlas for an extended period.