The Iron Mistress is a 1952 American Western film directed by Gordon Douglas and starring Alan Ladd and Virginia Mayo.

Henri Contrecourt, a man who has been courting her, kills Narcisse and challenges Jim to a fight, his sword versus Bowie's knife.

At the race, Jim learns that Judalon has married wealthy Philippe de Cabanal, someone of her own elite social class.

When the last of the losing bettors pay up, he insults Jim's friend, causing a duel to which Jima and Moreno are opposing seconds.

He is nursed back to health by Ursula Veramendi, daughter of the Governor of the Texas province of adjacent Mexico.

When Judalon shows no regret at all for her husband's death, Jim abandons her, throws his knife into the river and marries Ursula.

[3] The New York Times called it "an excellent quasi fictional biography from that skein of tangled legend and fact.

During filming a fire swept through the Warner Bros lot but the unit for Iron Mistress was on location at the time.