PARIS -- More than two centuries after the French cut off their king's head, a pretender to France's throne is planning a royal wedding.

Prince Jean d'Orléans, Duke of Vendôme, announced earlier this month that, at the age of 43, he will soon marry, with the hope of extending his royal line. His descendants would then be ready if the French monarchy -- which was toppled by the bloody Revolution of 1789 -- is ever brought back.

"Maybe...