"Friedrich von Amerling (14 April 1803 – 14 January 1887) was an Austro-Hungarian portrait painter in the court of Franz Josef. He was born in Vienna ...
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and was court painter between 1835 and 1880. With Ferdinand Georg Waldmüller he is one of the outstanding Austrian portrait painters of the 19th century." - (en.wikipedia.org 12.01.2020)