Also this guy https://en.m.wikipedia.org/wiki/Konrad_Kujau https://en.m.wikipedia.org/wiki/Konrad_Kujau He became (in)famous for faking Hitler's diaries but als

Also this guy https://en.m.wikipedia.org/wiki/Konrad_Kujau https://en.m.wikipedia.org/wiki/Konrad_Kujau He became (in)famous for faking Hitler's diaries but also faked paintings, later going legal. There have been cases of others faking his replicas.