Le Miracle des loups (), aka Blood on his Sword, is a French / Italian swashbuckler film from 1961, directed by André Hunebelle, written by Henry Dupuy-Mazuel, starring Jean Marais. The scenario was based on a novel by Henry Dupuy-Mazuel. The film was known under the title "Im Zeichen der Lilie" (West Germany), "Blood on His Sword" or "The Miracle of the Wolves" (USA).
Numerous scenes were filmed at the Cité de Carcassonne.
The action begins in June 1467, when Charles the Bold has just become Duke of Burgundy. The story unfolds over the subsequent months.