Overview
Countess Izabella Poniatowska (1 July 1730 – 14 February 1808) was a Polish noblewoman, sister of king Stanisław Antoni Poniatowski.
Life
She was the daughter of Stanisław Poniatowski and Konstancja Czartoryska. She was reportedly close to her brother Stanisław during their childhood.
On 19 November 1748 she married Hetman Jan Klemens Branicki. The marriage was arranged to give the Czartoryska-Poniatowski family political party an ally in her spouse, and she was expected by her family to influence him. However, her spouse was indifferent to her, and she left him to live with the Masovian voivode Andrzej Mokronowski, whom she eventually married. This was a time of difficulty for her, as she was exposed to conflict with her family and her elopement was treated a scandal.
Sister of the King
In 1763, her brother was elected king of Poland.
From Wikipedia (CC BY-SA 4.0).
