Zeus didn't have a second wife. Zeus had a lot mistresses (and I mean A LOT)
Zeus's wife's name was Hera.
Zeus' wife is Hera, his younger sister.
Hera, his renouned wife, is second and is obeyed mostly by all Zeus' subjects.
His first wife was Metis
Zeus' Greek wife is Hera. Jupiter's Roman wife is Juno.
Rhea
Hera.
Hera.
Zeus' first wife was Metis (Titan of wisdom) and his second wife was Hera (his sister and the goddess of marriage and women).
juno
Juno
juno