There were two Dutch cartographers named Blaeu:

Title Page Theatrum 1645
Willem Blaeu  (1571–1638)  wikidata:Q520327
 
Willem Blaeu
Alternative names
Willem Janszoon Blaeu, Willem Jansz Blaeu, Guilielmus Janssonius, Willems Jans Zoon, Guilielmus or G. Blaeu
Description Dutch cartographer, publisher, instrument maker, astronomer and printmaker
Date of birth/death 1571 Edit this at Wikidata 1638 Edit this at Wikidata
Location of birth/death Uitgeest Amsterdam
Work period 1610 Edit this at Wikidata
Work location
Amsterdam (1599–1638); Amsterdam Edit this at Wikidata
Authority file
creator QS:P170,Q520327
Joan Blaeu  (1596–1673)  wikidata:Q379677
 
Joan Blaeu
Alternative names
Johannes Blaeu; John Wiliamson Blaeu; Johannes Willemszoon Blaeu
Description Dutch cartographer, publisher, instrument maker and book printer
Date of birth/death 23 September 1596 Edit this at Wikidata 28 December 1673 Edit this at Wikidata
Location of birth/death Alkmaar Amsterdam
Work period 17th century
date QS:P,+1650-00-00T00:00:00Z/7
/ 1647 Edit this at Wikidata
Work location
Amsterdam (1631–1662); Amsterdam; Vienna Edit this at Wikidata
Authority file
creator QS:P170,Q379677

Similar to Abraham Ortelius' earlier Theatrum Orbis Terrarum, their atlas Theatrum Orbis Terrarum, sive, Atlas Novus was published 1635 in two volumes; in 1645 in four volumes; also named Atlas Maior in 1662 in 11 volumes, with ca. 600 maps and 3,000 pages of text in Latin.

The Toonneel der Steeden van de Vereenighde Nederlanden (Latin: Novum Ac Magnum Theatrum Urbium Belgicæ Liberæ ac Foederatæ) was published from 1649. At first in two different volumes. One of the liberated (latin: Liberæ) and one of the King's (Dutch: 's Konings) Netherlands.

An even larger project was planned but in 1672 a fire destroyed Joan Blaeu's studio. He died one year after this event.

Europae Septentrionalia & Orientalia, 1645

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Germania, 1645

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Germania Inferior, 1645

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Toonneel der Steden van de Vereenighde Nederlanden, 1649 - 1652

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Toonneel der Steden van 's Konings Nederlanden, 1649 - 1651

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Atlas of Scotland, 1654

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Atlas Maior 1667

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Vol 1 (Northern Europe, Norway, and Denmark)

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Sources

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