(Alanus Flandriensis), bishop of Auxerre, born in Flanders at the beginning of the 12th century, died in 1182. Some historians, as Oudin (q.v.), identify him with Alan de l'Isle (q.v.), while others, like Cave and the authors of the Histoire Litteraire de France, regard them as different persons. He became a monk at Clairvaux, under St. Bernard, in 1128; was, about 1139, made the first abbot of Rivoir or Rivour, in the diocese of Troyes, in Champagne, and, in 1151 (or 1152), bishop of Auxerre. He is the author of a life of St. Bernard (included in Opera St Bernardi, tom. 2, 1690, fol.).