Countess Karolina Rozalia Tekla Sobańska (née Rzewuska; 25 December 1795 – 21 July 1885) was a Polish agent and noblewoman.

She was a Russian agent, the mistress of the Tsarist general Jan de Witte (1781–1840) and a reputed lover of Poland's national poet Adam Mickiewicz.

[1] Karolina Sobańska belonged to the well-known szlachta family of Rzewuski.

During the November Uprising of 1831, Jan de Witte ruled Poland under war laws, and gave her the task to act as a spy in Russian service among to Polish rebels in Dresden and Saxony, a task she reportedly performed well, being able to forward several useful reports to the Russians.

[4] Considered a traitor in Russia and not quite trusted by the Russian Czar regardless of her service as a spy, she settled in Paris in France in 1836.