Jarenton a celebrated abbot of St. Benigne, at Dijon, France, born-at Vienna towards the year 1045 was educated in the monastery at Clugny. After leading for some time a life of dissipation, he retired in 1074 to the little monastery of La Chaise-Dieu, of which he soon became the prior, distinguishing himself among his monastic associates by a display of brilliant abilities and great erudition. In 1082 he was, after filling-various other positions of trust, dispatched on a very important mission by the French papal legate. In 1084 he went to Rome to report the success of his mission to pope Gregory VII, at that time confined by the emperor in the castle of Sant-Angelos, and he effected the pope's liberation by encouraging the papal legions to offer resistance to the imperial troops. We need not wonder that such service was well repaid by the papal court, and that hereafter Jarenton figure prominently in the Roman Catholic Church. In 1097 he retired to his abbey, which he left only to attend, in 1100, the Council of Valencia. 'He died, apparently, Feb. 10,1113. He is supposed to have written extensively, but only a letter to Thierry, the abbot of St. Hubert, is now known. See Hoefer, Nouv. Biog. Géneralé, 26, 375.