beguinage vs chapter house

beguinage

noun
  • A walled community of small houses occupied by the Beguines. 

chapter house

noun
  • A building used by a sorority or fraternity as a residence or meeting place. 

  • A building attached to a cathedral, church, or monastery and used as a meeting place. 

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