Original: The reforms were largely carried out by Saint Odo (c. 878 â "942) and spread throughout France (Burgundy, Provence, Auvergne, Poitou), into England, and through much of Italy and Spain.
Simplified: The reform was largely carried out by Saint Odo. It spread through France (Burgundy, Provence, Auvergne, Poitou), England and much of Italy and Spain.