Detailed maps of secret Portuguese maritime routes, published in the 1596 volume Itinerario, fundamentally altered the landscape of global commerce. These documents provided the precise nautical data required for Dutch, French, and English vessels to circumvent established trade monopolies in the East Indies, effectively dismantling a century of controlled Portuguese access to lucrative Asian markets.
Early Merchant Pursuits
Born in 1563 in Haarlem, Jan Huyghen van Linschoten moved to Enkhuizen during his youth. His father, Huig Joostenszoon, operated an inn called The Golden Falcon and participated in shipping loans. After early schooling, Linschoten left the Netherlands at sixteen to seek business opportunities. He traveled to Seville in 1580, eventually relocating to Lisbon where he sought professional advancement following the death of his brother, Floris, during a plague epidemic.
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Appointed secretary to Archbishop D. Frei João Vicente da Fonseca, Linschoten arrived in Goa in 1583. Over five years, he compiled extensive observations on regional trade and maritime navigation. He used his cartographic skills to copy classified charts showing currents, deeps, islands, and sandbanks. This intelligence, combined with accounts gathered from travelers like Dirck Gerritsz Pomp, formed the basis of his later publications regarding trade conditions across India, China, and Japan.
Return and Publication
Linschoten departed Goa in 1589, enduring a two-year delay in the Azores due to English military activity. Upon returning to Enkhuizen in 1592, he collaborated with publisher Cornelis Claesz. His 1595 work, Reys-gheschrift vande navigatien der Portugaloysers in Orienten, provided critical sailing directions.
Fast facts
- Born: 1563, Haarlem
- Died: 8 February 1611, Enkhuizen
- Citizenship: Dutch Republic
- Primary occupations: Merchant, writer, cartographer
- Goa service years: 1583–1588
- Major publication: Itinerario (1596)
Questions readers ask
How did Linschoten obtain Portuguese trade secrets?
While serving as the archbishop's secretary in Goa, he had direct access to and meticulously copied secret nautical charts and mercantile data over a five-year period.
Why was his 1596 publication historically significant?
It provided the first detailed, public European maps and sailing directions for the East Indies, allowing other nations to break the Portuguese trade monopoly.



