"Johann Georg, Chevalier de Saxe (21 August 1704 – 25 February 1774), also called Johann Georg of Saxony, was a Saxon Field Marshal and Governor of ...
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Dresden.
He was an illegitimate son of August the Strong, King of Poland and Elector of Saxony, and Ursula Katharina of Altenbockum, divorced Princess Lubomirska, since August 1704 Imperial Princess (Reichsfürstin) of Teschen." - (en.wikipedia.org 12.08.2021)
