An appellate court in Poland on Monday rejected a lawsuit brought against two Holocaust scholars in a case that has been closely watched because it was expected to serve as a precedent for research into the highly sensitive area of Polish behavior toward Jews during World War II.

Poland is governed by a nationalist conservative party that has sought to promote remembrance of Polish heroism and suffering during the wartime German occupation of the country. The party also believes that discussions of Polish wrongdoing distort the historical picture and are unfair to Poles.

The Appellate Court of Warsaw argued in its explanation that it believed that scholarly research should not be judged by courts. But it appeared not to be the end: a lawyer for the plaintiff said Monday that she would appeal Monday’s ruling to the Supreme Court.

The ruling was welcomed by the two researchers, Jan Grabowski and Barbara Engelking, who declared it a “great victory” in a Facebook post.

“We greet the verdict with great joy and satisfaction all the more, that this decision has a direct impact on all Polish scholars, and especially on historians of the Holocaust,” they said.

Monday’s ruling comes half a year after a lower court ordered the two researchers to apologize to a woman who claimed that her deceased uncle had been defamed in a historical work they edited and partially wrote, “Night Without End: The Fate of Jews in Selected Counties of Occupied Poland.”

Lawyers for the niece, 81-year-old Filomena Leszczynska, argued that her uncle was a Polish hero who had saved Jews, and that the scholars had harmed her good name and that of her family by suggesting the uncle was also involved in the killing of Jews.

The plaintiffs’ lawyer, Monika Brzozowska-Pasieka, said in an emailed statement to The Associated Press that Leszczynska was “astonished” by the judgement and intends to file an appeal to the Polish Supreme Court.