As of July 1, 2016, pursuant to Virginia Code §20-48, the minimum age to get married is 18, unless a minor has been emancipated by court order. Upon application for a marriage license, an emancipated minor shall provide a certified copy of the order of emancipation.
The following categories of marriages are illegal in Virginia:
A marriage entered into prior to the dissolution of an earlier marriage of one of the parties
A marriage between an ancestor and descendant; or between a brother and a sister; or between an uncle and a niece; or between an aunt and a nephew; whether the relationship is by the half or whole blood or by adoption
When either party lacks the mental or physical capacity to consent to the marriage
Common law marriages are not valid if entered into in Virginia or any other jurisdiction which does not permit them for its residents