Sibyl
It's unclear what's wrong with the article, because the editor who placed this tag here didn't enumerate the page's problems.
These problems might be so great that the article's factual accuracy has been compromised. Talk about it here or check the revision history or Manual of Style for more information.
Sibyl started a soothsaying cult in Pompeii (DW: The Fires of Pompeii)
It is unknown why Sibyl started the cult or what She used it for but the Doctor stated that she ran the cult less violently while She lived. The Doctor has said to have had a brief relationship with the Sibyl, but the Doctor thought that it wouldn't work, to which she replied "I know."