sovereignship vs throne

sovereignship

noun
  • The role or status of sovereign. 

throne

noun
  • Leadership, particularly the position of a monarch. 

  • A kind of stool used by drummers. 

  • An impressive seat used by a monarch, often on a raised dais in a throne room and reserved for formal occasions. 

  • A member of an order of angels ranked above dominions and below cherubim. 

  • A seat used for urination or defecation, such as a chamber pot, toilet, or the seat of an outhouse. 

  • The seat of a bishop in the cathedral-church of his diocese; also, the seat of a pope. 

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