Writing in the eleventh century, Sigebert of Gembloux named Boggis a duke of Aquitaine and misplaces his life towards 711. The Vita Landberti episcopi Traiectensis, a life of Bishop Lambert of Maastricht, refers to "Chrodoara ... widow of the recently deceased Boggis, duke of Aquitaine" as a "paternal aunt" of Lambert's.
In the eleventh century, Sigebert of Gembloux incorrectly identified Boggis as a Duke of Aquitaine and placed his death in 711. The Vita Landberti episcopi Traiectensis, a biography of Bishop Lambert of Maastricht, describes Chrodoara, widow of the deceased Boggis, as a "paternal aunt" of Lambert.