cross to bear vs misfortune

cross to bear

noun
  • A problem, or unpleasant or painful situation or person that you have to accept and deal with, although you find it very difficult, or it causes trouble or worry for you over a long period of time. 

misfortune

noun
  • An undesirable event such as an accident. 

  • Bad luck. 

How often have the words cross to bear and misfortune occurred in a corpus of books? (source: Google Ngram Viewer )