Hera
Hera on a Syrian Apameia bronze
Zeus' sister and simultaneously wife (second, albeit), Hera (Roman Juno) is the goddess of marriage and protectress of females in general. She is also sometimes referred to as the queen of Heaven, as her cult was an old and originally independent one. Indeed, her celestial presence is constantly reinforced by the Milky Way, which by Greek legend came from Hera's breasts in an interesting episode with infant Herakles. Hera's venerable status is reflected in her imagery, where she usually appears as a majestic woman with a crown or a diadem, sometimes draped. And yet, none of this solemnity would seem to stop her from exhibiting occasional petty behavior - like jealousy towards Herakles, or complete partiality for the Achaians in their quest for Troy.
Search for coins with Hera representations or associations.