The Malvern family, a prominent lineage of Serenno, stood as one of the seven distinguished houses of noble status. Their family emblem, alongside those of the other six houses, was displayed within the Great Assembly House located in Carannia. As of 42 BBY, this family had been engaged in mining activities on Serenno for numerous centuries, with zersium extraction being among their endeavors. Hagi, who held the title of Countess, was a member of this house.
The initial mention of House Malvern in the current Star Wars canon occurred within the 2019 audiobook titled Dooku: Jedi Lost, authored by Cavan Scott. Conversely, within the Star Wars Legends continuity, House Malvern made its debut in the comic series Star Wars: Agent of the Empire, specifically in the second issue of the Hard Targets story arc, penned by John Ostrander.