CODE OF VIRGINIA CERTAIN MARRIAGES PROHIBITED (ยง 20-38.1) The following marriages are prohibited: 1. A marriage entered into prior to the dissolution of an earlier marriage of one of the parties; 2. A marriage between an ancestor and descendant, or between siblings, whether the relationship is by the half or the whole blood or by adoption; 3. A marriage between an uncle or aunt and a nephew or niece, whether the relationship is by the half or the whole blood. HISTORY: 1975, c. 644; 1978, c. 647; 2020, c. 900.