Cluniac vs religieux

Cluniac

noun
  • A monk of the reformed branch of the Benedictine order, founded in 910 at Cluny (or Clugny) in France. 

adj
  • Relating to a reformed Benedictine monastic order founded at Cluny in eastern France. 

religieux

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

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