Complex sentence: Benno Frederick Toermer (Törmer), (4 July 1804--6 February 1859) was an painter, who was born and educated in Dresden, Saxony, in what is now Germany.
Split into simpler sentences: Benno Frederick Toermer (Törmer), (4 July 1804--6 February 1859) was a painter. He was born and educated in Dresden, Saxony, in what is now Germany.