Saints and society: the two worlds of western Christendom, 1000-1700 Donald Weinstein and Rudolph M Bell 1982
Holy feast and holy fast: the religious significance of food to medieval women Caroline Walker Bynum c1987
The growth of Papal government in the Middle Ages: a study in the ideological relation of clerical to lay power Walter Ullmann 1962
Foundations of the conciliar theory: the contribution of the medieval canonists from Gratian to the Great Schism Brian Tierney 1955
Church, state and Christian society at the time of the investiture contest Gerd Tellenbach and Ralph Francis Bennett 1948
The idea of reform: its impact on Christian thought and action in the age of the Fathers Gerhart B. Ladner 1959