1518 , AUSTRIA: Holy Roman Emperor Maximilian I of Austria (1459 1519) with writer Conrad Celtis presenting his book" Quatuor Libri Amorum" to Maximilian I. Portrait engraving by celebrated painter illustrator Albrecht Dürer (1471 1528) from the frontespice of the book, edition pubblished in 1521. Conrad Celtis aka Konrad Celtes, pseudo of Conrad Pickel (1459 1508), was a German Renaissance humanist scholar and Neo-Latin poet