 Balthild herself retired to Chelles in 664, bringing with her a second endowment, and died there in 680, where she was also buried.Her possessions were treated as relics at Chelles, including a chasuble, a vestment embroidered with a pectoral cross and an image of a beautiful necklace, which is currently displayed in the museum at the site.Her hagiography was written soon after her death, probably by a nun at the abbey.