Ursula Haverbeck, a well-known historical revisionist and neo-Nazi, was again convicted of Holocaust denial. Haverbeck, 88, was convicted by a Berlin district court on Monday and sentenced to six months in prison, Deutche Welle reported.

The conviction was for saying at an event in the city in January 2016 that the Holocaust did not occur and that there were no gas chambers at the Auschwitz Nazi death camp, which she said was a labor camp. Haverbeck said she will appeal the conviction.

Holocaust denial is illegal in Germany.

She is scheduled to go on trial in the western German down of Detmold for the third time, after twice being convicted of incitement to hatred there for denying a genocide of the Jews during World War II.

In November 2016, Haverbeck was convicted by a court in Verden on the basis of numerous articles she had published in the local newspaper Stimme des Reiches, or “Voice of the Reich,” in which she denied that the Holocaust occurred. The previous month, a court in Bad Oeynhausen sentenced Haverbeck to 11 months in jail for incitement to hate. In September 2016, the court in Detmold sentenced her to 8 months in prison. And the previous year, a court in Hamburg sentenced her to 10 months in jail. She has appealed all of these decisions as well and has not spent any time in jail on the convictions.

German media calls her the “Nazi grandma,” according to DW.