Moira Rossa was a Human woman living at the Federation colony on Galen IV in the 2350s, wife to Connor Rossa and the mother of Jeremiah Rossa. Her mother-in-law was Admiral Connaught Rossa. She used to sing to her son when he was a young child.
Endar found Jeremiah crying next to Moira's dead body and claimed the boy as his own, per Talarian custom. In 2367, Endar defended his actions at the time, asking Jean-Luc Picard whether he ought to have left the crying child behind.