5. Zeus Myth Zeus was married to Hera, but got married to mortals in Greece and had children with them. To protect one of his wives, Io, he turrned her into a cow. Hera found out about this and wanted her as a gift. Zeus had to agree, and Hera made her one-hundred eye guard watch over Io. Then Hermes was sent by Zeus to distract the guard while Zeus took her back to Earth.