Vivienne Gidian Prewett(born May 1978) is the daughter of Gideon and Annie Prewitt (nee Greene) and the sister of Fabian Prewett Jr. (Not to be confused with Fabian Prewett, Vivienne’s uncle). She is also related to the Weasleys, through her aunt Molly Weasley. Her parents were murdered (her father in 1981, her mother in 1982), leaving her and her bother orphaned. The twins were brought up by their grandparents, Charles and Catherine Greene, who were both muggles.