Cistercian vs religieux

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. 

religieux

noun
  • A man bound by monastic vows; a monk. 

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