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Continue to ChatJoseph II - Empress Maria Theresa's heir and co-ruler https://www.historyofroyalwomen.com/the-year-of-maria-theresa/year-maria-theresa-birth-male-heir-joseph-ii/
Joseph II - Empress Maria Theresa's heir and co-ruler https://www.historyofroyalwomen.com/the-year-of-maria-theresa/year-maria-theresa-birth-male-heir-joseph-ii/