A Norman Rockwell painting worth over $5 million was discovered inside the walls of cartoonist Don Trachte’s house in 2006. It’d been hidden there for 35 years. The cartoonist likely forged several paintings he owned to prevent losing them in a divorce settlement and hid the originals. – WTF Fun Facts
Source: https://www.theguardian.com/artanddesign/2006/apr/11/1
Han Van Meegeren was a Dutch painter and forger who became a national hero after WWII when it was revealed he sold fake paintings to Nazi leaders. After initially being accused of treason for selling Dutch cultural artifacts to the Nazi’s, he pleaded guilty to forgery and painted at his trial to prove he could replicate the famous Vermeer artwork. – WTF Fun Facts