Its title is Li Biaus Desconneus, which signifies The Fair Unknown.
He meets Rosette (the loathly damsel) and Le Biaus Mauvais, laughs at the former, is challenged by the latter, whom he overcomes and sends to Arthur.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "biaus" in a variety of sentences. We hope that you will now be able to make sentences using this word.