Grand Duke Nikolai Pavlovich (1796-1855), future emperor Nicholas I (ca. 1820)
<bdi><a href="//commons.wikimedia.org/wiki/Category:19th-century_portrait_paintings_of_men,_artist_missing" title="Category:19th-century portrait paintings of men, artist missing">Unidentified painter</a>
</bdi>
<a rel="nofollow" class="external free" href="http://www.hermitagemuseum.org/wps/portal/hermitage/digital-collection/03.+Miniatures/199580/?lng=ru">http://www.hermitagemuseum.org/wps/portal/hermitage/digital-collection/03.+Miniatures/199580/?lng=ru</a>