Boreas (Βορέας), one of the four Anemoi (wind gods), rules the cold north wind and winter. Son of Astraeus (dusk) and Eos (dawn), brother to Eurus (east), Notus (south), Zephyrus (west). Depicted as winged or bearded, sometimes with flying horses. Dwells in a Thracian cave. Personifies both harsh blizzards and winter’s quiet promise of spring.