Lorédo in armor separates Mainfredi and his son Isidor (The Living Ghost, 1801) - Bovinet after Binet

Lorédo has been deceived by his so-called friend, the manipulative Count de Mainfredi: he has stolen his lover Adelina to make her his wife, with whom he has had a son, Isidor. Eighteen years later, Adelina passes for dead, leaving Mainfredi free to remarry another woman, Cecilia, and thus replenish his gambling-depleted fortune.
But Cecilia meets a knight who becomes her lover: during a secret meeting with him near a most gothic castle - and among the most impressive in the corpus of noir novel images - Mainfredi intervenes and asks his men to kidnap Cecilia, visible on the left in the background, while he engages his rival in combat. Little does he know that his rival is his own son, whom he had lost sight of eighteen years ago.
Lorédo, who has been watching the scene, steps in and separates them, suspending Mainfredi's murderous gesture: his masked, spectral appearance foreshadows the final revelations that are about to take place.