[1] In 1885, he acted as chief counsel to Louis Riel, who was on trial for leading the North-West Rebellion.

[3] Fitzpatrick entered politics in 1890, winning election to the Quebec Legislative Assembly in the Québec-Comté electoral district.

[citation needed] In 1905, he took part, as the federal government representative, in the negotiations that led to the creation of the provinces of Alberta and Saskatchewan.

Partway through his term as Lieutenant Governor, his wife's nephew (Louis-Alexandre Taschereau) became the Premier of Quebec.

She was the daughter of René-Édouard Caron, 2nd Lieutenant Governor of Quebec, and his wife Marie-Joséphine De Blois.