Rosenwein, Short History of the Middle Ages, is not required.
A short history of the Middle Ages. Volume 1, From c.300 to c.1150, Author: Rosenwein, Barbara H., Publisher: University of Toronto Press 2014
RB 1980 : the Rule of St. Benedict : in English, Author: Benedict Saint, Abbot of Monte Cassino., Publisher: Liturgical Press 1982
Life of St. Columba, Author: Adomnan of Iona ; translated by Richard Sharpe., Publisher: Penguin Books 11th print 1991
The life of Antony and the letter to Marcellinus, Author: transl. and introduction by Robert C. Gregg ; preface by William A. Clebsch., Publisher: Paulist Press 1980
Three treatises on the divine images, Author: St John of Damascus ; translation and introduction by Andrew Louth., Publisher: St Vladimirs? seminary press 1st ed. 2003