Roman Catholic vs dogan

Roman Catholic

noun
  • A person who belongs to the (Roman) Catholic Church. 

adj
  • Of or pertaining to the Latin rite, Latin Church, or Roman Rite of the Catholic Church. 

  • Of or pertaining to the Roman Catholic Church and Roman Catholicism. 

dogan

noun
  • A Roman Catholic, especially one of Irish origin. 

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