Regina
"The Queen," a title of the goddess Juno, a Roman goddess of marriage and the long-suffering wife of Jupiter. Like her Greek equivalent, Hera, she was the protector of women, in particular married women. A festival took place in her honor on the calends (first) of March. When referred to as Juno Lucina she was the goddess of childbirth.
Those making offerings to her had to untie any knots about their person, since these could hinder a safe delivery. As Juno Moneta she governed finance, and the Roman mint was located in her temple on the Capitoline Hill.
Juno's name is the feminine counterpart of Jupiter (Heavenly Father) and, whereas all men had their 'Genius', all women had their Juno'.
Jupiter is said to have divided the dominion of the universe between himself and his two brothers, Neptune and Pluto, taking heaven as his own portion, and having his throne and holding his court on Mount Olympus, in Thessaly, while he assigned the dominion of the sea to Neptune, and to Pluto the lower regions—the abodes of the dead. Jupiter had several wives, both goddesses and mortals; but last of all he married his sister Juno, who maintained permanently the dignity of queen of the gods. The offspring of Jupiter were numerous, comprising both celestial and terrestrial divinities. The most noted of the former were Mars, the god of war; Vulcan, the god of fire (the Olympian artist who forged the thunder-bolts of Jupiter and the arms of all the gods); and Apollo, the god of archery, prophecy, music, and medicine.
From Smith's Dictionary of Greek and Roman Biography and Mythology