https://en.wikipedia.org/wiki/Maurice,_Duke_of_Saxe-Zeitz
Maurice of Saxe-Zeitz (28 March 1619 – 4 December 1681) was a duke of Saxe-Zeitz and member of the House of Wettin.
Born in Dresden, he was the youngest surviving son of John George I, Elector of Saxony, and his second wife Magdalene...