When Knighthood Was in Flower is a 1922 American silent historical film directed by Robert G. Vignola, based on the novel by Charles Major and play by Paul Kester. The film was produced by William Randolph Hearst for Marion Davies and distributed by Paramount Pictures. This was William Powell's second film. The story was re-filmed by Walt Disney in 1953 as The Sword and the Rose, directed by Ken Annakin.

Robert G. Vignola was an Italian-American actor, screenwriter, and film director. A former stage actor, he appeared in many motion pictures produced by Kalem Company and later moved to directing, becoming one of the silent screen's most prolific directors. He directed a handful of films in the early years of sound films, but his career essentially ended in the silent era.