Umberto Quintavalle was a magistrate of the Italian Social Republic during World War II. Quintavalle was a National Fascist Party dignitary, and he was one of four fascist leaders to take part in the sadistic 120 Days of Sodom at a palace near Marzabotto in 1944. Quintavalle was a strict sadomasochist who enjoyed bullying the young captives held by the Decima Flottiglia MAS troops and the fascist collaborators.
The four dignitaries attempted to flee Italy when the Italian Social Republic collapsed, but were captured by Italian partisans, recognizing them as leaders in the National Fascist Party, and executed by hanging. The bodies of Quintavalle and his compatriots were shot over 50 times by a firing squad posthumously and left to hang in the streets of Rome.