Lady vs ball and chain

Lady

noun
  • A high priestess. 

  • An aristocratic title for a woman; the wife of a lord and/or a woman who holds the position in her own right; a title for a peeress, the wife of a peer or knight, and the daughters and daughters-in-law of certain peers. 

name
  • The title for the (primary) female deity in female-centered religions. 

  • The major supernatural figurehead in the Wiccan religion, a triune goddess split into the Mother, Maiden, and Crone. 

ball and chain

noun
  • One's wife, as a symbol of restraint. 

  • A heavy iron ball attached to a prisoner's leg by a chain as a means of restraint. 

  • Anything that restricts one's freedom or opportunities. 

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