Asmodeus or Asmodai is a king of demons mostly known from the deuterocanonical Book of Tobit. The demon is also mentioned in some Talmudic legends, for instance, in the story of the construction of the Temple of Solomon. He was supposed by some Renaissance Christians to be the King of the Nine Hells. Asmodeus also is referred to as one of the seven princes of hell. In Binsfeld's classification of demons, each one of these princes represents one of the seven deadly sins (Pride, Lust, Envy, Sloth, Greed, Gluttony, and Wrath). Asmodeus is the demon of lust and is therefore responsible for twisting people's sexual desires. It is said that people who fall to Asmodeus' ways will be sentenced to an eternity in the second level of hell.

Azrael is the traditional name of the Archangel of Death. He is also the Angel of Death in Islamic extrabiblical tradition and folklore. It is an English form of the Arabic name Azra'il (???????) or Azra'eil (??????), the name traditionally attributed to the angel of death in Islam and some Hebrew lore.[1] The Qur'an never uses this name, referring instead to Malak al-Maut (which translates directly as angel of death). It is also spelled Izrail, Izrael, "Azriel", Azrail, Ezraeil, Azraille, Azryel, or Ozryel. Chambers English dictionary uses the spelling Azrael. The name literally means Whom God Helps.

Mephistopheles (also Mephistophilus, Mephistophilis, Mephostopheles, Mephisto and variants) is the name of the demon in the Faust legend. The character has since appeared in other works as a stock character version of the devil.

In demonology, Belphegor (or Beelphegor) is a demon who helps people to make discoveries. He seduces people by suggesting to them ingenious inventions that will make them rich. According to some 16th century demonologists, his power is stronger in April. Bishop and witch-hunter Peter Binsfeld believed that Belphegor tempts by means of laziness.[1] Also, according to Peter Binsfield's Binsfield's Classification of Demons, Belphegor is the chief demon of the deadly sin known as Sloth in Christian tradition.

Cronus, Kronos or Cronos was the leader and the youngest of the first generation of Titans, divine descendants of Gaia, the earth, and Uranus, the sky. He overthrew his father and ruled during the mythological Golden Age, until he was overthrown by his own sons, Zeus, Hades, and Poseidon, and imprisoned in Tartarus.

Abaddon (, meaning "A place of destruction", "The Destroyer", "Depths of Hell") in the Revelation of St. John, is the king of tormenting locusts and the angel of the bottomless pit. The exact nature of Abaddon is debated, but the Hebrew word is related to the triliteral root ??? (ABD), which in verb form means "to perish."[2]

Dagon was a major northwest Semitic god, reportedly of grain and agriculture. He was worshipped by the early Amorites and by the inhabitants of the cities of Ebla and Ugarit (which was an ancient city near the Mediterranean containing a large variety of ancient writings and pagan shrines). He was also a major member, or perhaps head, of the pantheon of the Biblical Philistines.

Bubonic plague is the best known manifestation of the bacterial disease plague, caused by the Gram-negative bacterium Yersinia pestis (formerly known as Pasteurella pestis). It belongs to the family Enterobacteriaceae. The term "bubonic plague" was often used synonymously for plague, but it does in fact refer specifically to an infection that enters through the skin and travels through the lymphatics, as is often seen in flea-borne infections. Bubonic plague kills about half of infected patients in 3–7 days without treatment, and may be the Black Death that swept through Europe in the 1340s, killing tens of millions.