(A) wife of Quorum member Sire Uri. According to Sire Uri, his wife never made "the voyage". (Saga of a Star World)
It can be presumed that either the Cylons managed to get to Siress Uri, or the Sire managed to somehow plan the Cylons (or someone) to get to her. His lack of concern for his wife, and his apparent lack of mourning, validate either speculative event; best symbolized by the asthetically pleasing females flanking him on the Rising Star.