Petronella Osgood's mother

Petronella Osgood's mother and father, Frank Osgood, once holidayed in the Douro Valley. (AUDIO: True Nemesis)

Osgood's mother told her that the green stain on her labcoat was never going to come out. She once saw a photograph of the Tenth Doctor and indicated to Osgood that she was attracted to him. (PROSE: The Day of the Doctor)