| Konstancja Poniatowska | |
|---|---|
| Spouse(s) | Ludwik Tyszkiewicz |
| Issue | |
| Ludwik Tyszkiewicz Anna Tyszkiewicz |
|
| Noble family | Poniatowski |
| Father | Kazimierz Poniatowski |
| Mother | Apolonia Ustrzycka |
| Born | 2 March 1759 unknown |
| Died | 1830 (aged 70–71) Paris, France |
Princess Konstancja Poniatowska (1759–1830) was a Polish noble lady.
Konstancja married Ludwik Tyszkiewicz in 1775. She was one of the closest friends of the famous French Minister of Foreign Affairs, Charles Maurice de Talleyrand-Périgord.