What has the author Guy de Bretagne written?

There is no known author named "Guy de Bretagne". It's possible there's a misspelling or a lesser-known author.

To help me find the author you're looking for, could you provide more information? For example:

* Full name: Is it "Guy de Bretagne" or a different spelling?

* Genre: What type of books does this author write? (fiction, non-fiction, etc.)

* Time period: When did this author live or publish?

With more details, I might be able to help you find the author you're looking for!