There has been data ("Frankish bishops: Gregory of Tours, Saint Boniface, Ludger, Hincmar, Hubertus, Rabanus Maurus, Wulfram of Sens, Medardus, Leodegar") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Sat Jan 25 16:09:13 2020, so the data displayed here has been removed .