Jean Langlois was a Quebec

Quebec

Quebec or is a province in east-central Canada. It is the only Canadian province with a predominantly French-speaking population and the only one whose sole official language is French at the provincial level....

 lawyer, professor and political figure. He represented Montmorency

Montmorency (electoral district)

Montmorency was a federal electoral district in the province of Quebec, Canada, that was represented in the Canadian House of Commons from 1867 to 1917, and from 1968 to 2004.-History:"Montmorency" riding was created by the British North America Act...

 in the Canadian House of Commons

Canadian House of Commons

The House of Commons of Canada is a component of the Parliament of Canada, along with the Sovereign and the Senate. The House of Commons is a democratically elected body, consisting of 308 members known as Members of Parliament...

 as a Conservative

Conservative Party of Canada (historical)

The Conservative Party of Canada has gone by a variety of names over the years since Canadian Confederation. Initially known as the "Liberal-Conservative Party", it dropped "Liberal" from its name in 1873, although many of its candidates continued to use this name.As a result of World War I and the...

 member from 1867 to 1878.

He was born in Saint-Laurent

Saint-Laurent-de-l'Île-d'Orléans, Quebec

Saint-Laurent-de-l'Île-d'Orléans is a municipality in the Capitale-Nationale region of Quebec, Canada, part of the L'Île-d'Orléans Regional County Municipality. It is situated on the south side of Orléans Island....

 on the Île d'Orléans

Île d'Orléans

Île d'Orléans is located in the Saint Lawrence River about east of downtown Quebec City, Quebec, Canada. The island was one of the first parts of the province to be colonized by the French, and a large percentage of French Canadians can trace ancestry to early residents of the island...

 in 1824, the son of Jean Langlois and Marie Labrecque, and studied at the Séminaire de Québec. He was called to the bar in 1847 and became a Queen's Counsel

Queen's Counsel

Queen's Counsel , known as King's Counsel during the reign of a male sovereign, are lawyers appointed by letters patent to be one of Her [or His] Majesty's Counsel learned in the law...

 in 1867. Langlois was partner in a law firm in Quebec City

Quebec City

Quebec , also Québec, Quebec City or Québec City is the capital of the Canadian province of Quebec and is located within the Capitale-Nationale region. It is the second most populous city in Quebec after Montreal, which is about to the southwest...

 with Louis-Napoléon Casault

Louis-Napoléon Casault

Sir Louis-Napoléon Casault was a Quebec lawyer, judge, professor and political figure. He represented Bellechasse in the 1st Canadian Parliament from 1867 to 1870 as a Conservative member....

. He was professor of criminal law at Université Laval

Université Laval

Laval University is the oldest centre of education in Canada and was the first institution in North America to offer higher education in French...

 from 1858 to 1867. He was elected to the House of Commons in an 1867 by-election after Joseph Cauchon was named to the Senate.

In 1870, Langlois married Mary Josephine Macdonald. He died in Quebec City at the age of 62.