Spanish general and member of the commission formed to execute the 1777 Treaty of San Idelfonso, which set the borders between the Spanish and Portuguese empires in South America. Requena led an extensive expedition to map the tributaries of the Amazon River and settle the boundaries. He later became governor and commander of the Mainas territory in what is now Peru.
"Francisco Requena." Science and Its Times: Understanding the Social Significance of Scientific Discovery. . Encyclopedia.com. (November 21, 2018). https://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/francisco-requena
"Francisco Requena." Science and Its Times: Understanding the Social Significance of Scientific Discovery. . Retrieved November 21, 2018 from Encyclopedia.com: https://www.encyclopedia.com/science/encyclopedias-almanacs-transcripts-and-maps/francisco-requena