Chancellor vs alliance

Chancellor

noun
  • An honorific for the head of state of a republic in Germany. 

alliance

noun
  • Marriage. 

  • The persons or parties allied. 

  • The state of being allied. 

  • The act of allying or uniting. 

  • A union or connection of interests between families, states, parties, etc., especially between families by marriage and states by compact, treaty, or league. 

  • Any union resembling that of families or states; union by relationship in qualities; affinity. 

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