Royal Marriages Act 1772

2 In case any descendant of Geo. 2. being above 25 years old, shall persist to contract a marriage disapproved of by his Majesty, such descendant, after giving 12 months notice to the Privy Council, may contract such marriage; and the same may be duly solemnized, without the previous consent of his Majesty; and shall be good; except both Houses of Parliament shall declare their disapproval thereof.E+W+S

Provided always that in case any such descendant of the body of his late Majesty King George the Second, being above the age of twenty-five years, shall persist in his or her resolution to contract a marriage disapproved of, or dissented from, by the King, his heirs or successors; that then such descendant, upon giving notice to the King’s Privy Council, which notice is hereby directed to be entered in the books thereof, may, at any time from the expiration of twelve calendar months after such notice given to the Privy Council as aforesaid, contract such marriage; and his or her marriage with the person before proposed and rejected, may be duly soleminized, without the previous consent of his Majesty, his heirs or successors; and such marriage shall be good, as if this Act had never been made, unless both Houses of Parliament shall, before the expiration of the said twelve months, expressly declare their disapprobation of such intended marriage.