she allegedly told her son that she would rather see him dead than covered in shame. This led to the second duel, in which Tarla was killed in the famed Marymont-duel. In 1745, she resolved the conflict between Jerzy Ignacy Lubomirski and Czerniak Stanisławs and Antoni Lubomirski. In 1752, the wife of the French ambassador, countess de Broglie, accused her of being behind the poisoning of L.A Duperron de Castér and described her as a person capable of anything. In 1753, she called her son back from France and supported him being sent to Russia in cooperation with Ch. H. Williams. In 1755, she lost her political influence within the family political party because of her opposition to a Polish participation in the Seven Years' War and discord with her brothers, who no longer respected her opinions. The death of her mother caused her to fall in to depression and a greater interest in religion. In culture She was portrayed in a novel by Maria Dernałowicz, "Portret Familia" (W. 1974). Children Kazimierz Poniatowski - podkomorzy of the Crown Stanisław August Poniatowski - last king of Poland Andrzej Poniatowski - Austrian field marshal Michał Jerzy Poniatowski - last primate of Poland (in the First Republic of Poland) Izabella Poniatowska - wife of Jan Klemens Branicki, and later of Andrzej Mokronowski References Biogram został opublikowany w latach 1982-1983 w XVII tomie Polskiego Słownika Biograficznego. 1700 births 1759 deaths Nobility from Warsaw Poniatowski family Konstancja 18th-century Polish nobility 18th-century Polish women People of the War of the Polish Succession