Mandate of Heaven vs divine right

Mandate of Heaven

noun
  • Any such mandate or blessing. 

  • The Chinese philosophical concept of the circumstances under which a ruler is allowed to rule. Good rulers would be allowed to rule with the Mandate of heaven, and despotic, unjust rulers would have the Mandate revoked by disasters or revolution. 

name
  • The philosophical construct that is the basis of the authority of the Son of Heaven. 

divine right

noun
  • The Christian doctrine that monarchs have a God-given right to rule, that they are answerable only to God, and that rebellion is sinful. 

How often have the words Mandate of Heaven and divine right occurred in a corpus of books? (source: Google Ngram Viewer )