Augustine vs black friar

Augustine

noun

  • An Augustinian. 

name

  • A male given name from Latin, notably borne by Saint Augustine of Hippo (354-430), a church father and a writer. 

black friar

noun

  • A member of the religious order of the Dominicans. 

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