I think so. They were Germany's ally in the war, and the top leadership must have known about the Holocaust sometime in 1941, the murders, mass shootings at first, started in large numbers with the Nazi invasion of Russia in June 1941. And they did nothing to protest or publicize the mass murders being committed by their ally.
German accused of joining ISIS in Syria deported by Turkey (AP)
from the article: Anti-Semitic remarks hurled at Italian parliamentary debate