>>21012034A very very famous German painter. Around 1520. Painted the most realistic images. And was the German counterpart to the Italian masters. Even if Google wont show these masterpieces on the first pages.
He although was the one that continously paragraphed his paintings with a Logo, his colleagues like da Vinci didn't. At least Not on every painting. And not as a logo (a brand). He even sued people selling fake prints in Valencia or Milano as he made the first copyright case due to the majors of the different cities. So they and their courts saw the illegal sale of fake prints as an criminal act. Picrel is a "selfie" he painted. The "A" with the "D" beneath is his logo.