duchy vs palatinate

duchy

noun

  • A dominion or region ruled by a duke or duchess. 

palatinate

noun

  • A territory ruled by a palatine. 

  • The office or rank of a palatine. 

  • A native or inhabitant of such a territory. 

adj

  • Of or pertaining to a palatinate or the Palatinate. 

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