What Catherine died of a broken heart?

This sounds like a line from a story or a saying. There are many famous Catherines throughout history, and it's not clear which one you're referring to.

To help me pinpoint which Catherine you're thinking of, can you provide more context? For example:

* Is this a character in a specific book or movie?

* Is it a historical figure?

* Is it a common saying or proverb?

Once I have more information, I can help you figure out which Catherine you're thinking of and if there is a story behind the phrase "died of a broken heart."