Émilie Barthe (March 26, 1849 – May 10, 1930) was a Canadian most widely known for the rumours of having an intimate relationship with Prime Minister Sir Wilfrid Laurier.
In 1880, they had a son Armand Lavergne, who became a lawyer, journalist and political figure, serving in the federal House of Commons and the Legislative Assembly of Quebec.
[1] Despite being married to Zoé Lafontaine, he maintained his relationship to Barthe as she relished literature and politics just as he did, while Lady Laurier was not an intellectual.
It was by his decision that on August 4, 1897, Joseph Lavergne, who had been a Member of Parliament, was made a judge of the Superior Court for the district of Ottawa.
When Laurier began to realize the potential damage of the rumours, he returned Barthe's letters to her and in 1901 transferred Joseph Lavergne from Ottawa to Montreal.