Retcon article
(covers information that was retroactively changed)

Viola M. Salvatore was the mother of Starfleet ensign Bruno Salvatore and the wife of Giuseppi Salvatore. (TNG: "Eye of the Beholder")

This character was only mentioned in writing.
An okudagram readout of Bruno Salvatore's personnel file was displayed on a viewscreen that Deanna Troi was studying.
For the remastered episode, the name was changed to Moksha Salvatore.