Italian monk Saint Benedict of Nursia, considered the patriarch of western monasticism, founded the Benedictine order circa 529. The Catholics and the Anglican Church honor this Christian patron of Europe and students. With 12 communities at Subiaco, forty miles to the east of Rome, he moved to Monte Cassino in the southern mountains. The mere confederation of autonomous congregations, not commonly understood, originated later. His main achievement, his "Rule of Saint Benedict," contains precepts. The writings of John Cassian heavily influences this book, which shows strong affinity with the Rule of the Master. This unique spirit of balance, moderation, and reasonableness (ἐπιείκεια, epieikeia) persuaded most religious communities, founded throughout the Middle Ages, to adopt it. As a result, his Rule most influences religious rules in Christendom.

Saint Bede (672/673 - 735), referred to as Venerable Bede (Latin: Bēda Venerābilis) for over a thousand years before being canonized, was an English monk at the Northumbrian monastery of Saint Peter at Monkwearmouth and of its companion monastery, Saint Paul's, in modern Jarrow (see Monkwearmouth-Jarrow), both in the Kingdom of Northumbria. He is well known as an author and scholar, and his most famous work, Historia ecclesiastica gentis Anglorum (The Ecclesiastical History of the English People) gained him the title "The Father of English History.” In 1899, Bede was made a Doctor of the Church by Pope Leo XIII, a position of theological significance; he is the only native of Great Britain to achieve this designation (Anselm of Canterbury, also a Doctor of the Church, was originally from Italy). Bede was moreover a skilled linguist and translator, and his work with the Latin and Greek writings of the early Church Fathers contributed significantly to English Christianity, making the writings much more accessible to his fellow Anglo-Saxons. Bede's monastery had access to a superb library which included works by Eusebius and Orosius among many others.