Duke of Montmorency
But in November of that year, Henri II, Duke of Montmorency, on his way to the scaffold, betrayed Gaston, his former co-conspirator, and Louis XIII and Richelieu learnt of the elopement. The king had his brother's marriage declared null and void by the Parlement of Paris in September 1634 and, despite the protest of Pope Urban VIII, the Assembly of the French clergy held in September 1635 that a "prince du sang" could enter matrimony only with permission of the king – consistent with French sovereignty and custom. Although Marguerite and Gaston had re-celebrated their marriage before the Archbishop of Malines, a French emissary persuaded the Pope not to protest the matter publicly, and Gaston formally accepted the annulment of his marriage. It was not until Louis XIII was on his deathbed in May 1643 that he accepted his brother's plea for forgiveness and authorized his marriage to Marguerite, whereupon the couple undertook nuptials for the third time in July 1643 before the Archbishop of Paris at Meudon, and the Duke and Duchess of Orléans were finally received at court.