Queen Serenity

Queen Serenity was the queen of the Moon Kingdom during the Silver Millennium and the mother of Princess Serenity.

Appearance
Queen Serenity is slender with fair skin and bright silver eyes. She has long silvery-white hair done up in odangos. She wears a white dress with a bow on the top, adorned with a gold crescent brooch. She has a golden-coloured crescent moon on her forehead, which is the mark of the Silver Millennium itself and the royal family's symbol.

Biography
Long ago, Queen Serenity ruled over the people of the Moon, who had long lives to aid their mission to protect the Silver Crystal, while at the same time watching over Earth and guiding it on a good path. Queen Serenity gave the respective castles to Sailor Uranus, Sailor Neptune, and Sailor Pluto when they were born to help protect the solar system from outside threats. She also gave Pluto the job of being the guardian of time and to follow three rules she can't break: she couldn't travel in time, she couldn't leave the Space-Time Door and most important of all to not stop time otherwise it would cost Pluto her life.

At some point, Queen Serenity had encountered Queen Nehellenia during the celebration of Princess Serenity's birth. Queen Serenity sealed Nehellenia into a mirror but not before Nehellenia sent a curse that lead to the downfall of the Silver Millennium. Eventually, the evil prophecy was fulfilled, when Queen Metalia arose, taking control of Earth and using its people to incite a war against the Moon Kingdom, leading to the death of Princess Serenity. Queen Serenity gave her life to seal away Metalia and the Dark Kingdom, and what remained of the Silver Millennium was destroyed by the awakened Sailor Saturn, thus everyone was reborn in the present day.