intendant vs viceroy

intendant

noun
  • 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. 

  • The administrator of an opera house or theater. 

viceroy

noun
  • One who governs a country, province, or colony as the representative of a monarch. 

  • An orange and black North American butterfly (Limenitis archippus), so named because it is similar to, but smaller than, the monarch butterfly. 

  • A zongdu. 

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