At the close of the eleventh century, Paul von Bernried, a monk of Fulda, at the suggestion of Abbess Heilika of Niedermünster, wrote a life of Erhard and added a second book containing a number of miracles. The learned canon of Regensburg, Conrad of Megenberg (d. 1374), furnished a new edition of this work. The church in Niedermünster, now a parish church, still preserves the crosier of the saint, made of black buffalo-horn. A bone of his skull was enclosed in a precious receptacle in 1866 and is placed upon the heads of the faithful on his feast day, 8 January.