Mellony ana'Marianna is the daughter of Marianna ana'Lissa and Averill Lightfoot Demonai  and younger sister to Raisa ana'Marianna. Mellony was almost put on the throne by the wizard council and married off to Micah Bayar in an attempt to allow the Bayars to restart the line of wizard kings. When Raisa returned, Mellony blamed her for Marianna's death.

Mellony was described by Raisa to be a cheerful girl, resembling their mother more than the clan-born side of the two princesses. Raisa sees how young Mellony is at thirteen and is mad in The Exiled Queen when Micah tells Raisa about the plan to have him married to Mellony after Raisa ran away and was "killed by street thugs".