On Sabrina the teenage witch show There was a picture of a woman in their house I believe at the bottom of the stairs Does any one know who the woman on the picture is?

The woman in the picture at the bottom of the stairs in "Sabrina, the Teenage Witch" is actually a portrait of Sabrina's mother, who is a significant character in the show's backstory. While she is not a central figure in the series, her presence is felt throughout, as Sabrina often reflects on her family and heritage. The portrait serves to connect Sabrina to her witch lineage and adds depth to her character.