Georg Decker
Georg Decker (7 December 1818 – 13 February 1894) was an Austro-Hungarian portrait artist.Decker was born in Hungary to a German-speaking family, and grew up and made his career in Vienna, where he taught painting as well as working as a portrait and historical artist. Thanks to his teaching, he was sometimes referred to as ''Herr Professor Georg Decker''.
Appointed as a knight of the Order of Franz Joseph, Decker has been called "a renowned portraitist of Vienna's highest society". Provided by Wikipedia