Roy first entered politics in 1998 as mayor of Saint Sophie de Levrard, a small town near Quebec City.
In 2003 she shifted to provincial politics, and was elected to the National Assembly as a member of the Action Democratique du Quebec.
She became interim leader of the ADQ in 2009, and was re-elected in 2002 as a member of the CAQ following the merger of the two parties.
Roy left the CAQ last year after an argument with leader Francois Legault.
Roy was the first MNA, and one of the most vocal, to call for an inquiry into corruption in the province’s construction industry.
She is survived by two children, her mother and stepfather, her sister and her ex-husband. Roy was 51 years old