WILLEM BLAEU

Willem Janszoon Blaeu (1571 – 21 October 1638), also abbreviated to Willem Jansz. Blaeu, was a Dutch cartographer, atlas maker, and publisher. Along with his son Johannes Blaeu, Willem is considered one of the notable figures of the Netherlandish or Dutch school of cartography during its golden age in the 16th and 17th centuries.

Blaeu was born at Uitgeest or Alkmaar. As the son of a well-to-do herring salesman, he was destined to succeed his father in the trade, but his interests lay more in mathematics and astronomy. Between 1594 and 1596, as a student of the Danish astronomer Tycho Brahe, he qualified as an instrument and globe maker.[2] During this time in 1596, his son Joan Blaeu was born and he would also become a well established cartographer. Later in 1600 Willem discovered the second ever variable star, now known as P Cygni.

Once he returned to Holland, he made country maps and world globes, and as he possessed his own printing works, he was able to regularly produce country maps in an atlas format, some of which appeared in the Atlas Novus published in 1635. In 1633 he was appointed map-maker of the Dutch East India Company. 

He had two sons, Johannes and Cornelis Blaeu, who continued their father's mapmaking and publishing business after his death in 1638. Prints of the family's works are still sold today. Original maps are rare collector items.His maps formed the bulk of the Atlas Maior, which became a collector's item in Amsterdam.