Bluebeyrd or Bluebeard: How To spell?

The word Bluebeyrd is misspelled against Bluebeard, a noun meaning "The hero of a mediaeval French nursery legend, who, leaving home, enjoined his young wife not to open a certain room in his castle. She entered it, and found the murdered bodies of his former wives. -- Also used adjectively of a subject which it is forbidden to investigate."