Born to the nobility, a member of the royal house of Seldenbüren. Founded and endowed Engelberg Abbey at Unterwalden, Switzerland. Benedictine lay-brother at Engelberg. Considered a martyr because he was killed on a trip to Zurich to defend the rights of the abbey.
- Book of Saints, by the Monks of Ramsgate
- Our Sunday Visitor’s Encyclopedia of Saints, by Matthew Bunson, Margaret Bunson, and Stephen Bunson