Ludwig von Siegen (1609 ?Utrecht - c1680 ? Wolfenbüttel, Germany) was a German soldier and amateur engraver, who invented the printmaking technique of mezzotint, a variant of engraving. He was a well-educated aristocrat, and a Lieutenant-Colonel who commanded the personal guard of William VI, Landgrave of Hesse-Cassel, and acted as a personal aide to the ruler, with the title "kammerjunker" or chamberlain. Wikipedia
The definitive Wikipedia entry for Ludwig von Siegen. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Ludwig_von_Siegen
Von Siegen was a Lieutenant-Colonel in the service of Prince Rupert's cousin His Royal Highness William VI of Hesse-Cassel. www.npg.org.uk/live/mellonmezzotint.asp
