Who is known as the father of Dutch cartography?

• A. Abraham Ortelius
• B. Gerardus Mercator
• C. Willem Janszoon Blaeu
• D. Johannes Janssonius

Answer: (B)

Gerardus Mercator earned the title because his map projection and approach to navigation reshaped how maps were made and used in the Dutch world. The Mercator projection, introduced in 1569, preserves angles, allowing navigators to plot straight-line courses on a chart and maintain consistent bearings over long oceanic journeys. This made maps far more practical for seamanship and commerce, a priority for the Dutch maritime powers. Mercator’s emphasis on reliable, reproducible methods and his collaboration with leading printers helped establish a standardized workflow and quality that other Dutch cartographers followed. While other important figures contributed in different ways—Ortelius with the first modern atlas and Blaeu and Janssonius with expansive atlases and nautical charts—Mercator’s innovations directly shaped the practice and education of Dutch mapmaking, which is why he is regarded as the father of Dutch cartography.