"The Saint-Louis cemetery is a Catholic garden cemetery located at 1294 rue Laflèche at the intersection of Boulevard des Forges in Trois-Rivières (Quebec) in Canada. It is the oldest Catholic cemetery still existing in the territory of the city of Trois-Rivières.
History
On August 5, 1862, the Trois-Rivières factory acquired the plot of land on the heights of the Saint-Louis hill and the cemetery opened three years later in 1865. Mgr. Thomas Cooke, the first Trois-Rivières bishop at the head of the Cathedral of the Assumption of Mary which consecrates the place at the request of the churchwardens of the parish of the Immaculate Conception of the Holy Virgin.
The first burial occurred in 1866. The remains and bones were subsequently moved there from the old cemetery of the poor (1834-1870) positioned opposite the Ursuline convent to this new cemetery located further north of the city to health reasons at the request of the Ursuline sisters themselves. The former mass grave erected in 1867 bears witness to the religious architecture of the 19th century and is listed as a cultural heritage site in Quebec.
It is in this cemetery that former Quebec Prime Minister Maurice Duplessis was buried and has been buried since his death in 1959."