"Duke Johann Wilhelm of Saxe-Altenburg (born 13 April 1600 in Torgau; died: 2 December 1632 outside Brzeg) was a member of the Ernestine branch of the ...
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House of Wettin and a titular Duke of Saxe-Altenburg and of Jülich-Cleves-Berg." - (en.wikipedia.org 08.03.2020)
