Initially they were transferred to the Church of the Recollets (the French Franciscans) in 1825, but by 1841 they numbered 6,500, and could no longer be accommodated.

The site of Saint Patrick's Church was purchased, and construction began in September 1843.

What was then the outskirts of the town, on a sloped site overlooking parishioners' homes in Point St. Charles, Goose Village and Griffintown, Saint Patrick's seven cornerstones were laid, making it the oldest English-speaking Roman Catholic Church in Montreal.

[citation needed] The interior is heavily ornamented with motifs that combine a French fleur de lys and Irish shamrocks; more striking are the 25-metre (82 ft) columns, all carved from the same white oak and encased in marble.

[5] Two additions to the decorations have been made since St. Patrick's completion, first in 1922 by Guido Nincheri and again in 1931 by Victor Marion.

Pew 240, used by Thomas D'Arcy McGee, a statesman and Father of Confederation who was assassinated in 1868 in Ottawa.

The church is located at 460 René Lévesque Boulevard West, in downtown Montreal, at the corner of Saint-Alexandre Street (Square-Victoria-OACI or Place-des-Arts metro stations).

“Community and Identity in Nineteenth Century Montreal: The Founding of Saint Patrick’s Church.” University of Ottawa Canada, 2009.