Azerbaijanian musician, musicologist, poet and calligrapher of XV century - Abdulgadir Maragi (1353— 1435) (miniature in style of the Middle Ages) [Unknown authorUnknown author / http://uzeyirbook.musigi-dunya.az/ru/data.pl?id=8&lang=RU -- Public domain -- http://commons.wikimedia.org/wiki/File:Maraqi.jpg]