Mentioned in "The Kindred, Part 1"
Balera was a female Athosian. Her parents once gave her a necklace to celebrate her coming of age. In 2007, she along with all the Athosians, apart from Teyla Emmagan, were taken by Michael. Her necklace was taken, and given to a merchant from M2S-181. Since a few Athosians turned into Hybrids, and several more were killed in the process, her fate remains unknown. (ATL: "The Kindred, Part 1")