Authentic 17th-century demonology. You are looking at figures from the anonymous grimoire, The Lesser Key of Solomon.
Illustrated by Louis Le Breton for the 1863 edition of Dictionnaire Infernal. Andras is a demon of discord known to slay his summoner.
A Great Marquis of Hell from the definitive 1863 edition of Dictionnaire Infernal. Illustrated by marine painter Louis Le Breton.