directorate vs intendant

directorate

noun
  • A body of directors. 

  • An agency headed by a director, usually a subdivision of a major government department. 

intendant

noun
  • The administrator of an opera house or theater. 

  • A governor in various specific contexts, including certain South American countries, and historically in the kingdoms of Spain, Portugal, and France, and in imperial China. 

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