Diana managed to save Matthew, but he almost drained her of her blood. In an attempt to save Matthew's life, she made a bargain with the goddess, putting anything on the line to save her beloved. She managed to bring Matthew to the brink of death but Diana called upon witchfire to destroy Juliette once and for all. In the climax of this book, Juliette Durand, a vampire from Matthew's past, arrived near Sarah's home to assassinate Matthew on orders from Gerbert, her maker. After making some notes regarding the text, Diana decides to send the enchanted document back into the stacks of the library. Almost immediately, Diana sees that Ashmole 782 is a palimpsest, a manuscript within a manuscript, and not only that, the writing underneath has been hidden with a spell. While Diana Bishop is doing research in the Bodleian Library at the University of Oxford, her life is changed by a single manuscript, Ashmole 782. After she obtained her PhD, she became a professor of history at Yale. Diana went on to obtain a bachelor's degree from a college in Maine and a graduate degree from Oxford. Losing her parents caused Diana to reject her magic altogether. Subsequently, she was raised by her aunt Sarah Bishop and Emily Mather, Sarah's partner. When she was seven, her parents were killed by other witches.

From a very early age, she displayed signs of extraordinary power and ability, notably time-walking at the age of three. Diana Bishop was born in 1986 to Rebecca Bishop and Stephen Proctor, both extremely powerful witches, Rebecca having mastered the higher magics and Stephen being a weaver.

Witches season 2