|This needs a stretch.|
Mrs. Swords is the mother of pop-star Pritty Swords.
Scooby-Doo! (DC Comics)
The gang investigated when a valuable tiara was stolen by a UFO during a concert performance starring Pritty Swords. Pritty reacted badly and fired her mother from managing her. This showed a poor relationship between them that could have been a motive for Mrs. Swords to steal the tiara herself. She was the one who hired the Space Alien, unknown to Pritty.