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Names of 1 Enoch Watchers
In the Book of Enoch, the watchers are angels dispatched to Earth to watch over the humans. They soon begin to lust for human women, and at the prodding of their leader Samyaza, they defect en masse to illicitly instruct and procreate among humanity. The offspring of these unions are the Nephilim, savage giants who pillage the earth and endanger humanity. Samyaza and associates further taught their human charges arts and technologies such as weaponry, cosmetics, mirrors, sorcery, and other techniques that would otherwise be discovered gradually over time by humans, not foisted upon them all at once.
Eventually God allows a Great Flood to rid the earth of the Nephilim, but first sends Uriel to warn Noah so as not to eradicate the human race. While Genesis says that the Nephilim remained "on the earth" even after the Great Flood, Jude says that the Watchers themselves are bound "in the valleys of the Earth" until Judgment Day. (See Genesis 6:4 and Jude 1:6, respectively)
There are 20 leaders in the Book of Enoch also called 1 Enoch the section that mentions them reads:
“ 7. And these are the names of their leaders: Sêmîazâz, their leader, Arâkîba, Râmêêl, Kôkabîêl, Tâmîêl, Râmîêl, Dânêl, Êzêqêêl, Barâqîjâl, Asâêl, Armârôs, Batârêl, Anânêl, Zaqîêl, Samsâpêêl, Satarêl, Tûrêl, Jômjâêl, Sariêl. 8. These are their chiefs of tens." - R. H. Charles translation, The Book of the Watchers, Chapter VI. ”
These are the leaders of 200 angels in 1 Enoch that are turned into fallen Angels because they took wives, mated with human women, and taught forbidden knowledge.
Araqiel (also Arakiel, Araqael, Araciel, Arqael, Sarquael, Arkiel, Arkas)  taught humans the signs of the earth. However, in the Sibylline Oracles, Araqiel is referred to not as a fallen angel, or Watcher, but as one of the 5 angels who lead the souls of men to judgement, the other 4 being Ramiel, Uriel, Samiel, and Azazel.
Armaros (also Amaros) in Enoch I taught men the resolving of enchantments.
Azazel taught men to make knives, swords, shields, and how to devise ornaments and cosmetics.
Gadriel taught the art of cosmetics.
Baraqel (Baraqiel) taught men astrology
Bezaliel mentioned in Enoch I, left out of most translations because of damaged manuscripts and problematic transmission of the text.
Chazaqiel (sometimes Ezeqeel) taught men the signs of the clouds (meteorology).
Kokabiel (also Kakabel, Kochbiel, Kokbiel, Kabaiel, and Kochab), is a high-ranking, holy angel but, in general apocryphal lore and also in Enoch I, he is a fallen Watcher, resident of nether realms, and commands 365,000 surrogate spirits to do his bidding. Among other duties, he instructs his fellows in astrology.
Penemue "taught mankind the art of writing with ink and paper," and taught "the children of men the bitter and the sweet and the secrets of wisdom."
Sariel (also Suriel) taught mankind about the courses of the moon (at one time regarded as forbidden knowledge).
Samyaza (also Shemyazaz, Shamazya, Semiaza, Shemhazi, Semyaza and Amezyarak) is one of the leaders of the fall from heaven.
Shamsiel, once a guardian of Eden, served as one of the 2 chief aides to the archangel Uriel (the other aide being Hasdiel) when Uriel bore his standard into battle, and is the head of 365 legions of angels and also crowns prayers, accompanying them to the 5th heaven. He is referred to as one of the Watchers. He is a fallen angel who teaches the signs of the sun.
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