Izabella Poniatowska

Izabella Poniatowska
Born1 July 1730
Wołczyn, Polish–Lithuanian Commonwealth
Died14 February 1808(1808-02-14) (aged 77)
Białystok, Congress Poland
Noble familyPoniatowski
Spouse(s)Jan Klemens Branicki
Andrzej Mokronowski
Issuenone
FatherStanisław Poniatowski
MotherKonstancja Czartoryska

Countess Izabella Poniatowska (1 July 1730 – 14 February 1808) was a Polish noblewoman, sister of king Stanisław August Poniatowski.