Saint Benedict of Nursia (480 - 547) was a saint from Italy, and a rule-giver for cenobitic monks. His purpose may be gleaned from his Rule, namely that "Christ ... may bring us all together to life eternal."
Benedict founded twelve communities for monks, the best known of which is at Monte Cassino in the mountains of southern Italy. There is no evidence that he intended to found a religious order. The Order of St Benedict is of modern origin and, moreover, not an "order" as commonly understood but merely a confederation of autonomous congregations, most of which are made up of autonomous monasteries.
Benedict's main achievement is his "Rule", containing precepts for his monks. It is heavily influenced by the writings of John Cassian, and shows strong affinity with the Rule of the Master. But it also has a unique spirit of balance, moderation and reasonableness, and this persuaded most religious communities founded throughout the Middle Ages to adopt it. As a result, the Rule of Benedict became one of the most influential religious rules in Western Christendom. For this reason Benedict is often called the founder of western Christian monasticism.