judicial officer vs seneschal

judicial officer

noun
  • A huissier de justice, a process server and officer of the court in several European countries. 

  • A public officer authorized to hear and decide cases in a court of law. 

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 judicial officer and seneschal occurred in a corpus of books? (source: Google Ngram Viewer )