In 1592, during the war with Spain, an English fleet had captured a large Portuguese galleon off the Azores, the Madre de Deus, loaded with 900 tons of merchandise from India and China, worth an estimated half a million pounds . This foretaste of the riches of the East galvanized interest in the region.  That same year, Dutch merchants sent Cornelis de Houtman to Lisbon, to gather as much information as he could about the Spice Islands. In 1595, merchant and explorer Jan Huyghen van Linschoten, having traveled widely in the Indian Ocean at the service of the Portuguese, published a travel report in Amsterdam, the "Reys-gheschrift vande navigatien der Portugaloysers in Orienten" . The published report included vast directions on how to navigate ships between Portugal and the East Indies and to Japan. Dutch and British interest fed on new information led to a movement of commercial expansion, and the foundation of the English East India Company, in 1600, and Dutch East India Company , in 1602, allowing the entry of chartered companies in the so-called East Indies. In 1602, the Verenigde Oost-Indische Compagnie  was founded, with the goal of sharing the costs of the exploration of the East Indies and ultimately re-establishing the spice trade, a vital source of income to the new Republic of the Seven United Provinces.

Based on the above article, answer a question. What was Cornelis de Houtman's job?
gather