Acts done in excess of such powers are legally void, and will if necessary be restrained by the courts.
French Justice Minister Dominique Perben had stated that such unions would be legally void, and called for judicial intervention to halt the ceremony.
Many incorporated (formally constituted) localities have become legally void, though most have not been abandoned by their citizens, with the notable exception of Jamestown.
More generally, Wendell Phillips disputed Spooner's notion that any unjust law should be held legally void by judges.
He also stated that the Emancipation Proclamation was legally void, and only defensible as a military necessity.
Even if she and her family consented to a marriage as the result of an elopement, the marriage was legally void.
The marriage is legally void, since Manley has abandoned his wife for more than seven years; and he is ready to leave the "Skittish Jade, and have money to boot."
As their marriage was in contravention of the Royal Marriages Act 1772, it was considered legally void, and she could not be styled as the Duchess of Sussex.
The ceremony was legally void, since three months' notice is required.
Your intervention has done little to dispel my misgivings as to whether Belgian law, according to which redundancies without agreed financial provision are legally void, has been complied with.