Overview
El mariscal del infierno (The Marshal From Hell), aka The Devil's Possessed, is a 1974 Spanish/Argentine co-production. It was a historical drama directed by Leon Klimovsky, written by Paul Naschy and co-produced by Nestor Gaffet and Jose Antonio Perez Giner. It starred Paul Naschy in the title role, and co-featured Norma Sebre and Guillermo Bredeston.
Naschy said he based the lead character Gilles de Lancre on the notorious medieval serial killer Gilles de Rais, and the film's plot was a loose remake of the 1956 Akira Kurasawa film Throne of Blood (itself an adaptation of Shakespeare's Macbeth).
It was filmed in May and June 1974, and was theatrically released only in Spain and Belgium that same year as El mariscal del infierno. It was released on VHS home video in the 1980s as The Devil's Possessed. There appears to have been a somewhat sexier "international version" of the film at one time, but it apparently no longer exists.
Plot
In medieval France, the Baron Gilles de Lancre becomes obsessed with alchemy and black magic, and his wife (the sadistic Georgelle) encourages his interests, fooling him into believing that an alchemist friend of hers named Simon de Braqueville can change lead into gold if the Baron will supply him with a quantity of virgins' blood to use as an ingredient. The Baron orders his soldiers to kidnap any young virgins in the area, and his wife has the girls violently sacrificed in ways that satisfy her own sadistic urges.
From Wikipedia (CC BY-SA 4.0).