Gisèle Pelicot was scheduled to return to court in France on Monday, 10 months after a mass trial in which 51 men were convicted, most for raping her while she was deliberately sedated. The case deeply shocked the country and established her as an international feminist icon.

One of those men, Husamettin Dogan, 44, has appealed both the ruling and the sentence. The second trial, to be heard in the Court of Appeal in Nîmes, in France’s south, will be decided by three judges and a nine-person jury.

Ms. Pelicot, now 72, is not required to be present, but her lawyers said she planned to attend the entire process, as she did the last trial. She also plans to waive her right to a private proceeding once again, they said.

“She feels it’s her responsibility to be there,” said Stéphane Babonneau, one of her two lawyers. “She says, ‘I started something; I have to end it.’”

The original criminal trial last fall shocked the nation. By opening the trial to the public, Ms. Pelicot — who has since divorced her husband, Dominique Pelicot — enabled the country to witness her intimate horror and, in the process, confront the pervasiveness of rape and misogyny in France.

Over months, local newspapers and radios recounted how her once-beloved husband of 50 years had spent almost a decade mixing sleeping pills into her food and drink, and then inviting strangers he met online to join him in raping her limp, snoring body.