Miron v Trudel,  2 S.C.R. 418 is a famous Supreme Court of Canada decision on equality rights under section 15 of the Canadian Charter of Rights and Freedoms where the Court found "marital status" was an analogous ground for discrimination (i.e., a characteristic which cannot legally be the basis for discrimination under section 15). The Court held that an insurance benefit provided only to married couples discriminated against common-law couples.
John Miron and Jocelyne Valliere were a common law couple. Miron suffered a car accident and attempted to claim the injuries under his partner's insurance policy. However, the Ontario Insurance Act provided that benefits were only available to spouses who were legally married.
Miron sued the insurance company arguing that he was discriminated against and that the Insurance Act violated section 15.
In a five to four decision the Court found that there was a Charter violation and that it could not be saved under section 1 of the Charter.
The finding that common law marriages are protected by section 15 was repeated in Nova Scotia (Attorney General) v. Walsh (2002) and Hodge v. Canada (Minister of Human Resources Development) (2004). However, both these cases saw section 15 claims lose in the Supreme Court, as the justices decided that differential treatment based on marital status in these cases should not affect dignity.