Misattributed author

[Tom]

The above entry lists Marie de France as the author, but these texts are not commonly attributed to her, nor does Weingartner attribute them to her in his edition. It also contains a few other small errors (including the title spelling).
How should the author issue be dealt with, and by whom?
Thank you in advance for any help.

[Abcdarian]

Changed the title and added info as on WorldCat. Moved Weingartner to top author, as WorldCat has. Amazon has only him. I'll leave the decision of whether or not to remove Marie de France altogether to higher ups, though I see Guingamor is listed under her books in another edition.

[Tom]

Thank you!