grand vizier vs patriarch

grand vizier

noun
  • A figure of great authority and power. 

  • The greatest minister of a sultan, with absolute power of attorney and, in principle, dismissable only by the sultan himself. 

patriarch

noun
  • An old leader of a village or community. 

  • A founder of a political or religious movement, an organization or an enterprise. 

  • The male head of a household or nuclear family. 

  • The male progenitor of a genetic or tribal line, or of a clan or extended family. 

  • The highest form of bishop, in the ancient world having authority over other bishops in the province but now generally as an honorary title; in Roman Catholicism, considered a bishop second only to the Pope in rank. 

  • In Biblical contexts, a male leader of a family, tribe or ethnic group, especially one of the twelve sons of Jacob (considered to have created the twelve tribes of Israel) or (in plural) Abraham, Isaac and Jacob. 

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