Joanna vs Josephine

Joanna

name
  • A female given name from Latin [in turn from Hebrew]. 

  • One of the women following Jesus. 

Josephine

name
  • A female given name from French 

adj
  • Pertaining to Joseph II, Holy Roman Emperor. 

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