Who is M. de l'Aubepine?

Answer 1

He is a character in Nathaniel Hawthorne's "Rappaccini's Daughter" and is essentially Hawthorne writing about himself under the guise of a French name, which when translated literally mean "of the hawthorn." If you look at the title of the works attributed to the Frenchman, you would further notice that all of his writings are just French translations of Hawthorne's own writings.

Answer 2

M. de l'Aubepine is a character in Nathaniel Hawthorne's short story "Rappaccini's Daughter." He is a scientist who conducts experiments in his garden, ultimately leading to tragic consequences for his daughter.