Berno was born about the year 850 to a noble family in Burgundy. His father may have been the French nobleman Odon, who gave a refuge for the Benedictine community from
Glanfeuil Abbey after the monks had been driven from the monastery by Norman attacks in 862. Berno joined the Benedictine Abbey of St. Martin at Autun, where
Hugh of Anzy le Duc had introduced stricter adherence to the
Rule of Saint Benedict. Later, Berno was sent to restore the monastery of
Baume-les-Messieurs in the diocese of Besançon, which had fallen into neglect. In 890 he established, with his own funds, the monastery of St. Peter at Gigny in the
Jura Mountains and became its first abbot. In this he was supported by
Rudolph I of Burgundy In 894, Berno travelled to Rome and got papal approval for the charter of Gigny. The monasteries at Gigny and Baume followed the rule as interpreted by
Benedict of Aniane, who had sought to restore the primitive strictness of the monastic observance wherever it had been relaxed. The rule focused on prayer, silence, and solitude. Another account states that Berno was sent to Baume by Abbot Hugh of Autun. This monastery prospered and many monks came there to take vows. His reputation for holiness grew, and he was then asked to take over the leadership of Baume in order to reform it. Berno thus became abbot of Baume and restored this monastery's former reputation for holiness, A second story is supported by later charters that show Baume was dependent upon Gigny. However, it is also possible that Berno took over Gigny's leadership after being abbot of Baume, rather than the other way around. ==Founding of Cluny==