Cistercian vs male member of a religious order

Cistercian

noun
  • A member of a monastic order which follows the Benedictine rule and emphasizes silent contemplative prayer. 

adj
  • Of, pertaining to or characteristic of the Cistercian Order and its members. 

male member of a religious order

How often have the words Cistercian and male member of a religious order occurred in a corpus of books? (source: Google Ngram Viewer )