Izabela Grabowska
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Izabela Grabowska (b. about 1778 in Warsaw d. 1856 in Warsaw) - Polish-Lithuanian szlachcianka.
She was the illegitimate daughter of Stanisław August Poniatowski and Elżbieta Szydłowska.
In 1795 she married polish szlachcic Walenty Faustyn Sobolewski (b. 1770 d. 4 June 1831). They had three daughters:
- Teresa Laura (b. 14 October 1796 d. 5 September 1798)
- Aleksandra Laura (b. 1798 d. 16 December 1877) - wife of count Józef Kwilecki
- Kwiryna Paulina (b. 30 March 1800 d. 10 May 1812).

