Petrus Kaerius

Petrus Kaerius, also known as Pieter van den Keere (1571–c. 1646), was a prominent Flemish engraver, cartographer, and publisher crucial in developing early modern cartography. Born in Ghent, Kaerius came from a family deeply embedded in the world of printmaking and mapmaking. He trained under his brother-in-law, the famed cartographer Jodocus Hondius, in Amsterdam, where he honed his engraving and map design skills. Kaerius became known for his detailed and decorative maps, celebrated for their precision and artistry. His work was highly sought after by map publishers across Europe, and he contributed to numerous atlases, including those by the English mapmaker John Speed.

One of Kaerius’ most significant contributions to cartography was the creation of the “Germania Inferior” atlas, the first folio atlas dedicated exclusively to the Low Countries, published in 1617. This work, which included the famous Leo Belgicus map, was a testament to his craftsmanship and deep knowledge of the region. The atlas was reissued in several editions, with the 1622 Latin edition particularly notable. Despite facing financial difficulties later in life, which led to selling his copper plates to Claes Janszoon Visscher, Kaerius’ legacy endured through his maps, which remain prized by collectors and historians for their historical significance and artistic merit.