bey vs peer of the realm

bey

noun
  • in various other places, a prince or nobleman 

  • A governor of a province or district in the Turkish dominions 

peer of the realm

noun
  • Any similar member of the nobility of other kingdoms. 

  • Any member of the hereditary peerage of the United Kingdom, (chiefly) of the Kingdom of England. 

  • Any member of the House of Lords who is not a life peer. 

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