Авторитетная формаNovopacky, Jan принято в: Integrated Authority File (GND), Germany
Portrait of Jan Nowopacký (1821-1908), Czech painter. [AnonymousUnknown author / Zlatá Praha, vol. 20, iss. 5, p. 57, digitized by the Czech Academy of Sciences -- Public domain -- http://commons.wikimedia.org/wiki/File:Jan Nowopacky 1902.png]