From the late Roman Empire onwards, monasteries and convents were a common sight throughout Europe. But who were monasteries for? What kind of people founded and maintained them? And how did monasticism change over the thousand years or so of the Middle Ages? Andrew Jotischky traces the history of monastic life from its origins in the fourth century to the sixteenth. He shows how religious houses sheltered the poor and elderly, cared for the sick, and educated the young. They were centres of intellectual life that owned property and exercised power but also gave rise to new developments in theology, music, and art. This book brings together the Orthodox and western stories, as well as the experiences of women, to show the full picture of medieval monasticism for the first time. It is a fascinating, wide-ranging account that broadens our understanding of life in holy orders as never before.