His brother Irimbert was a successor as abbot , and may have written some of them .
Many homilies are attributed to him , taking the character of exegesis ; it is now doubted whether he was the author of all of them .
author 's brother Irimbert was a successor as abbot , and may have written some of them .
Many homilies are attributed to him , taking the character of exegesis ; it is now doubted whether he was the author of all of them .