My honey I know, I know...
With the dawn that you will be gone.
But tonight you belong to me.
Just to little old me...
Tonight You Belong to Me - Patience & Prudence
In demonology, Beleth, also spelled Bilet, Bileth, Byleth, or Bilith, is a king of Hell who has eighty-five legions of demons under his command. He rides a pale horse, and a variety of music is heard before him, according to most authors on demonology and the most known grimoires.
According to Pseudomonarchia Daemonum, Noah's son Ham was the first in invoking him after the flood, and wrote a book on mathematics with his help.
When appearing, he looks fierce in order to frighten the conjurer or to see if he is courageous. The conjurer must be brave, and holding a hazel wand in his hand must draw a triangle by striking towards the south, east, and upwards, then commanding Beleth into it by means of some conjurations.
The Dictionnaire Infernal states that to summon Beleth, the person should hold a silver ring on the middle finger of the left hand against his face, to pay respect to Beleth's rank as king.
In New Orleans Beleth seems to have had a hand in shaping and corrupting the city since the late 19th century. The dancing cat spying upon the girls at the Ursine Convent and having some kind of bond with both the Mother Superior and Head Priest.
It was Beleth's harbingers, the Dervish Poppets, and their attack on New Orleans in 2019 that the Unmoored became a coterie.
After the Fall, Beleth holds dominion over Orleans Parish. He has played host to Caine, his captured seer Madison Black, and holds a prized broken doll as his Captive Queen in mockery and grave insult to the Morningstar.
After time was reset to 2019, it is unknown whether or not Beleth holds memories of the Apocalypse. During 2019 at the charity event cohosted with Tobias Wren on behalf of the Tulane Medical Center and major Masquerade breach, all those who took part in the toast were infected by the Wyrm and the building was put under quarantine. But before the quarantine sealed off the building, the party managed to distract him long enough for Oliver and Cyrus to drug Beleth's drink. After losing consciousness, Byron Valdis was able to regain control and make his first interaction with the party suggesting that they tie him up 'just in case he comes back'.
After the exorcism at the Audubon Zoo in New Orleans, Beleth has been cast out of Byron Valdis and is presumably returned to the Pit.