Valac (Demon)

The demon Valac appears in the grimoires Book of Incantations, The Discoverie of Witchcraft, The Lesser Key of Solomon, Pseudomonarchia Daemonum, The Book of the Office of Spirits, The Book of Oberon, and Dictionnaire Infernal

From The Lesser Key of Solomon, Crowley/Mathers edition:

Valac

The Sixty-second Spirit is Volac, or Valak, or Valu. He is a President Mighty and Great, and appeareth like a Child with Angel's Wings, riding on a Two-headed Dragon. His Office is to give True Answers of Hidden Treasures, and to tell where Serpents may be seen. The which he will bring unto the Exorciser without any Force or Strength being by him employed. He governeth 38 Legions of Spirts, and his Seal is thus.

The demon Doolas likely a duplicate of this demon.

This demon rides the creature Dragon

This demon wings like the creature Goshawk

Timeline of related events

1600

1700

1800

1810

In this decade: Book of Incantations written (lists this demon)

1818

Publication of Dictionnaire Infernal (lists this demon)