circuit intendant vs seneschal

circuit intendant

noun
  • The chief magistrate of an imperial Chinese circuit, overseeing both its civil operation and local defense. 

seneschal

noun
  • An officer of the crown in late medieval and early modern France who served as a kind of governor and chief justice of the royal court in Normandy and Languedoc. 

  • A steward, particularly (historical) one in charge of a medieval nobleman's estate. 

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