Capetian dynasty has also been used as a surname for French royalty, particularly but not exclusively those of the House of Capet. One notable use was during the French Revolution, when the dethroned King Louis XVI (a member of the House of Bourbon and a direct male-line descendant of Hugh Capet) and Queen Marie Antoinette (a member of the House of Habsburg-Lorraine) were referred to as "Louis and Antoinette Capet" (the queen being addressed as "the Widow Capet" after the execution of her husband). The dynastic surname now used to describe Hugh Capet's family prior to his election as King of France
Hugh Capet of Reims compelled to surrender; to keep up appearances, Arnulf and Charles denounced each other, until Arnulf swore fealty to Charles. Great was the predicament of Hugh, and he began doubting whether he could win the contest by force. Adalberon, bishop of Laon, whom Charles expelled when he took the city, had sought the protection of Hugh Capet. The bishop made overtures to Arnulf and Charles, to mediate a peace between them and Hugh Capet. Adalberon was received by Charles favorably, but was made to swear oaths that would bring curses upon himself if broken. Adalberon swore to them all,