Backstory
Diane is the mother of Bernice Blackstock and owns the Woolpack pub. Until 2009, she and her younger sister, Val, co-owned the pub.
Diane was married to Rodney Blackstock and they had Bernice. However, Rodney left, following two affairs, including one with her sister Val, which resulted in Val giving birth to Paul. She serves as a regular protagonist of the soap.
Read more about this topic: Diane Sugden