1675 Blaeu Map of Morocco, Africa

Johannes Blaeu (September 23, 1596 - December 21, 1673), also known as Joan Blaeu, was a Dutch cartographer active in the 17th century. Johannes was the son of Willem Janszoon Blaeu, founding of the Blaeu firm. Like his father Willem, Johannes was born in Alkmaar, North Holland. He studied Law, attaining a doctorate, before moving to Amsterdam to join the family mapmaking business. In 1633, Willem arranged for Johannes to take over Hessel Gerritsz's position as the official chartmaker of the Dutch East India Company, although little is known of his work for that organization, which was by contract and oath secretive. What is known is his work supplying the fabulously wealthy VOC with charts was exceedingly profitable. Where other cartographers often fell into financial ruin, the Blaeu firm thrived. It was most likely those profits that allowed the firm to publish the Theatrum orbis terrarum, sive, Atlas Novus, their most significant and best-known publication. When Willem Blaeu died in 1638, Johannes, along with his brother Cornelius Blaeu (1616 - 1648) took over the management of the Blaeu firm. They vastly expanded and updated the Atlas Novus to a remarkable 12 volumes. Under the brothers' capable management, the firm continued to prosper until the 1672 Great Amsterdam Fire destroyed their offices and most of their printing plates. Johannes Blaeu, witnessing the destruction of his life's work, died in despondence the following year. He is buried in the Dutch Reformist cemetery of Westerkerk. Johannes Blaeu was survived by his son, also Johannes but commonly called Joan II, who inherited the family's VOC contract, for whom he compiled maps until 1712.

Abraham Ortelius (1527 - 1598) was one of the most important figures in the history of cartography and is most famously credited with the compilation of the seminal 1570 atlas Theatrum Orbis Terrarum, generally considered to be the world's first modern atlas. Ortelius was born in Antwerp and began his cartographic career in 1547 as a typesetter for the Antwerp Guild of St. Luke. In this role Ortelius traveled extensively through Europe where he came into contact with Mercator, under whose influence, he marketed himself as a "scientific geographer". In this course of his long career he published numerous important maps as well as issued several updated editions of his cardinal work, the Theatrum Orbis Terrarum. Late in his career Ortelius was appointed Royal Cartographer to King Phillip II of Spain. On his death in July fourth, 1598, Ortelius' body was buried in St Michael's Præmonstratensian Abbey , Antwerp, where his tombstone reads, Quietis cultor sine lite, uxore, prole.