Izabella Poniatowska | |
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![]() Portrait by Marcello Bacciarelli | |
Born | 1 July 1730 Wołczyn, Polish–Lithuanian Commonwealth |
Died | 14 February 1808 Białystok, Congress Poland | (aged 77)
Noble family | Poniatowski |
Spouse(s) | Jan Klemens Branicki Andrzej Mokronowski |
Issue | none |
Father | Stanisław Poniatowski |
Mother | Konstancja Czartoryska |
Countess Izabella Poniatowska (1 July 1730 – 14 February 1808) was a Polish noblewoman, sister of king Stanisław Antoni Poniatowski.