three in mythology:
trios of archaic goddesses:
archetype→ the moirae/fates: clotho, lachesis and atropos (greek)
♣→ the parcae: nona, decima and morta (roman)
♣→ the ursitoare: supposed to appear three nights after a child's birth to determine the course of its life (romanian)
♣→ the norns:
Urðr (past),
Verðandi (present) and
Skuld (future) (norse)
♣→ laima, kārta and dēkla (baltic: latvian/lithuanian)
♣→ the gratiae/graces/charites: aglaea (beauty), euphrosyne (mirth) and thalia (good cheer) (greek/roman)
♣→ the erinyes/furies/kindly ones: alecto (unceasing), megaera (grudging) and tisiphone (avenging murder) (greek/roman: dante & virgil)
♣→ the grey ones/graeae: deino (dread), enyo (horror) and pemphredo (alarm) (greek)
♣→ the zorya/auroras: zorya utrennyaya (morning star), zorya vechernyaya (evening star) and zorya polunochnaya (midnight star) (slavic)
♣ beasts and monsters:
→ the gorgons:
stheno (forceful),
euryale (far-roaming) and medusa (greek)
♣→ cerberus (greek)
♣→ the three witches (macbeth)
♣→ three prophetic birds:
gamayun,
alkonost,
sirin (russian)
interesting others:
→ the three Findemna:
♣ (irish)
→
three in norse mythology