Peter Damian (1007-1072), an eleventh-century monk and man of letters, left a large and significant body of correspondence. Over one hundred and eighty letters have been preserved, principally from Damian's own monastery of Fonte Avellana. Ranging in length from short memoranda to longer monographs, the letters provide a contemporary account of many of the controversies of the eleventh century: purgatory, the Eucharist, clerical marriage and celibacy,...