Georg Marcgrave (originally German: Georg Marggraf, also spelled "Marcgraf" "Markgraf") (1610 – 1644) was a German naturalist and astronomer, whose posthumously published Historia Naturalis Brasiliae was a major contribution to early modern science.
In 1637, he was appointed astronomer of a company being formed to sail to the Dutch Brazil. He was accompanied by Willem Piso, a physician. He afterward entered the service of Dutch Brazil's governor, Johan Maurits van Nassau-Siegen, whose patronage provided him with the means of exploring a considerable part of Brazil. He arrived in Brazil in early 1638 and undertook the first zoological, botanical, and astronomical expedition there, exploring various parts of the colony to study its natural history and geography. Traveling later to the coast of Guinea, he fell a victim to the climate.
His large map of Brazil, an important event in cartography was published in 1647. According to Cuvier, Marcgrave was the most able and most precise of all those who described the natural history of remote countries during the sixteenth and seventeenth centuries.
- Neil Safier, "Beyond Brazilian Nature: The Editorial Itineraries of Marcgraf and Piso's Historia Naturalis Brasiliae" in Michiel Van Groesen, ed. The Legacy of Dutch Brazil. New York: Cambridge University Press 2014, pp. 168-186.
- Wilson, J. G.; Fiske, J., eds. (1900). . Appletons' Cyclopædia of American Biography. New York: D. Appleton.
- Facsimile of original 1648 manuscript
- IPNI. Marcgr.
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- Account of Piso and Marcgrave to promote sale of a digitalized version of Historia Naturalis Brasiliae.
- Darmstaedter, L. (1928) Georg Marcgrave und Wilhelm Piso, die ersten Erforscher Brasiliens, Velhagen Klasings Monatshefte. 1928. pp. 649–654.
- Holthuis, L.B. (1991) Marcgraf's (1648) Brazilian Crustacea Zoologische Verhandelingen, Vol. 268 p. 1-123 PDF
- Whitehead, P.J.P. (1979) "The biography of Georg Marcgraf (1610-1643/4) by his brother Christian, translated by James Petiver" in J. Soc. Biblphy nat. Hist., 9:301-314.