Groseilliers, Médard Chouart, sieur des
Groseilliers, Médard Chouart, sieur des(mādär` shwär syör dā grôsāyā`), 1618?–c.1690, French trader and explorer in North America. He was the brother-in-law of Pierre Esprit RadissonRadisson, Pierre Esprit
, c.1632–1710, French explorer and fur trader in North America. He arrived in Canada in 1651. His journals, first published as the Voyages of Peter Esprit Radisson
..... Click the link for more information. and his companion in his great journeys.