Berthier County
Berthier County was a municipal county of Quebec which existed between 1855 and 1 January 1982. The territory it covered today is included in the administrative region of Lanaudière and is part of the current regional county municipalities (RMCs) of d'Autray and Matawinie. Its seat was the municipality of Berthierville. Formation. Berthier County included during its formation parishes and institutions in St. Ignace Island, the Island Pads, Berthier, Lanoraie, Lavaltrie, St. Norbert, St. Cuthbert, St. Bartholomew, St. Gabriel and the Township of Brandon.