Kugelgen Franz Gerhard Von

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Franz Gerhard von Kügelgen (February 26, 1772 – March 27, 1820) was a German painter, noted for his portraits and history paintings. He was a professor at the Academy of Arts in Dresden and a member of both the Prussian and Russian Academies of Arts. His twin brother, Karl von Kügelgen, was also a painter of note.

Reference
http://en.wikipedia.org/wiki/Gerhard_von_K%C3%BCgelgen