Zelos (Emulation/Rivalry), the personified spirit of zealous rivalry and one of the four winged warrior-spirits and throne-attendants of Zeus. Son of the Titan Pallas (greek_hesiod_pallas_titan) and the Oceanid Styx (greek_hesiod_styx); brother of Kratos, Bia and the existing Nike (greek_hesiod_nike). Authored as a deity (both parents deities). A personified abstraction; deathless, so no lifecycle event is recorded, matching the existing Nike entry.