Furfur

Commands six legions, fewer than any other spirit in the seventy-two. What the entry is remembered for is not the astrology or the geometry but the graveyard work: he shifts corpses between plots and sets what look like candles burning on the graves.

Entirely military logistics: he raises towers, stocks them with ammunition and weapons, and sends men of war where they are ordered. The Ars Goetia has this earl deliver all of it as a hoarse-voiced stock-dove.

Robs royal houses and carries what he takes wherever he is told, levels cities, and strips men of rank — and then, in the same entry, causes love between friends and foes. He appears as a crow, then as a man.

Last of the seventy-two demons of the Ars Goetia, and the one set against dishonesty: he returns the thief along with what was taken, exposes underhand dealing, and punishes it. He appears as a man holding a great serpent.

Commands seventy-two legions, one for every spirit in the book. He is the Asmodeus of Tobit, who killed Sarah's seven husbands and was driven into Upper Egypt by Raphael, and behind that the Avestan Aeshma-daeva, the demon of wrath — one of very few Goetic spirits with an ancestry that can be traced.

The Canaanite goddess Astarte, three thousand years on, made a male duke of hell with her name intact. The Goetia has him discourse willingly on the fall of the spirits, and warns the operator to hold a ring to his face against the stench of his breath.