Ba’al, Baal Davar, Baal-Peor, Baalam, Baalphegor, Baalsebul, Baalzephon, Bael, Baell, Balam, Balan, Balberith, Beal, Belberith, Beleth, Belfagor, Belial, Beliar, Belphegor, Berith, Bileth, Bilet, Byleth, and Elberith.
Described as wearing a crown and riding a horse.
To gain my favor for at least 20 years: people believed this was possible by taking a black chicken to a crossroads at night and sacrifice it by cutting its throat. Say, “Berith, do my work for 20 years.” Bury the chicken deeply enough so that animals will not dig it up. (and depending on how over the top people went and how hard they gave me a laugh after a long day, sometimes I would do a few jobs for them in exchange. Mostly I just ignored this.)
Baalberith is a major demon, one of the spirits who possessed Sister Madeleine in the Aix-En-Provence Possessions. Baalberith was once a prince in the angelic order of cherubim. According to Johann Weyer, Baalberith is the secretary and librarian of the archives in Hell and is a demon of the second order, a master of the Infernal alliance. He also is a grand pontiff and master of ceremonies. He countersigns or notarizes pacts with the Devil. He temps men to blasphemy and murder.
In the Aix-en-provence case, Baalberith volunteered the names of all the demons possessing Sister Madeleine, as well as the names of the saints who could counter them.