"Portrait of a Young Man," by Raphael, is an oil canvas painting done in the early 1500s. This painting can be known as the most important painting during World War II, because it was stolen by Nazis from Poland. It is not clear whether this painting "survived" the war or not, or where the painting could be today. Also, nobody is completely sure who the man in the painting is. Although, some have a theory that it is a portrait of Raphael himself.