Career
A Benedictine monk and chronicler, he made updates to the World Chronicle (Chronicon universale) of Frutolf of Michelsberg adding important German history between 1098 and 1125 during the reign of Emperor Henry V, in which he sided strongly with the papacy in the Investiture Controversy. He was a participant in the Crusade of 1101 (Lerner, 1989), and provided important source material for the massacre of Jews in the Rhineland and the First Crusade.