Rosanna is the daughter of Dustfinger and Roxane. She died at a young age (according to Cloud Dancer, approximately two winters after Dustfinger had left), during the time when Dustfinger was away from the Inkworld. She died of a fever that had been fatal to many people (It is said that even Nettle couldn't help them). Rosanna is a sister to Brianna, who is also a daughter of Dustfinger and Roxane.
She is said to have inherited dark hair from her mother.