caesar vs rani

caesar

noun
  • emperor, ruler, dictator 

  • Any agaric mushroom of the genus Amanita, section Amanita sect. Caesareae. 

rani

noun
  • A Hindu princess or female ruler in India. 

  • The wife of a rajah. 

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