It was located in the present-day Rimouski-Neigette Regional County Municipality in Bas-Saint-Laurent, Quebec.
The Rimouski Seignory was first granted to Augustin Rouer de la Cardonnière [fr] by the Marquis de Denonville, governor of New France, on April 24, 1688.
[3] Jean Bochart de Champigny, Intendant of New France, was unhappy with seignors in Bas-Saint-Laurent who did not work towards the development of their seignories.
Thus René Lepage de Sainte-Claire became the owner of the seignory of Rimouski by exchanging it for his land on the Island of Orleans with Augustin Rouer on July 10, 1694.
[4] Its territory included both sides of the Rimouski River and the Saint-Barnabé Island [fr].