Marie-Marguerite Duplessis Radisson (c. 1718 – after 1740) was a Pawnee woman who was enslaved in New France.[1]
Duplessis may have been first enslaved in Iowa by the Winnebago Nation.[2] In 1726 she was given to French trader René Bourassa near Baie-des-Puants (now Green Bay) who in turn gifted the child to Madeline Coulon de Villiers, the widow of François-Antoine Lefebvre Duplessis Faber, who lived in Montreal at the home of Étienne Volant de Radisson, a merchant.[2] In 1735 she was sold to Louis Fornel, and again in 1740 to Marc-Antoine Huart Dormicourt.[1] She was, apparently, not compliant, and Dormicourt complained that she was a libertine, a drunkard, and a thief, and sought to transport her to Martinique.[1][2]
With the assistance of lawyer Jacques Nouette, Duplessis challenged Dormicourt's authority as her master.[3] On or about 1 October 1740 she presented a petition claiming to be the baptised daughter of Duplessis Faber, and asking the court to recognize that she was a free woman.[1] On 20 October 1740 the court rejected her petition and recognised Huart Dormicourt as her master and owner.[1] Although her appeal for freedom was unsuccessful, she was one of the first enslaved people in New France who succeeded in even having her case heard by a court.[1]
Nothing is known of her after 1740; she was likely sent to labour in Martinique and may not have survived the journey.[1][2]