This book celebrates the work and contribution of Professor Janet Burton to medieval monastic studies in Britain. Burton has fundamentally changed approaches to the study of religious foundations in regional contexts (Yorkshire and Wales), placing importance on social networks for monastic structures and female Cistercian communities in medieval Britain; moreover, she has pioneered research on the canons and their place in medieval English and Welsh societies. This Festschrift comprises contributions by her colleagues, former students and friends – leading scholars in the field – who engage with and develop themes that are integral to Burton's work. The rich and diverse collection in the present volume represents original work on religious life in the British Isles from the twelfth to the sixteenth century as homage to the transformative contribution that Burton has made to medieval monastic studies in the British Isles.