|Catholic Encyclopedia - St. Odilo became abbot of Cluny shortly before Abbot Mayeul's death in 994. The Cluniac reform flourished during his tenure in office, and St. Odilo was instrumental in bringing about the "Peace of God". He died in 1048.
||For All the Saints - Biographical portrait of St. Odilo, who instituted the observance of All Souls' Day.
|Patron Saints Index - Profile of St. Odilo, the "Archangel of Monks".
||The Saints: A Concise Biographical Dictionary - Says that St. Odilo's subjection of other monasteries to Cluny constituted the first religious order, properly speaking.
|St. Odilo - Short biography of the fifth abbot of Cluny.