Genealogy / I have a story about my Polish ancestor but no name. [7]

I am looking for information about my ancestor. My ancestor was a nobleman who's wife had died, leaving him with a very young daughter named Agnieska. The man went with his servant to fight in the Napoleonic war and was killed. His servant returned to the estate and raised the young girl as his own. She grew up thinking he was her father, but when a wealthy businessman from Hungary came looking for a wife for his son, he recognized that the servant was not the nobleman. Agnieska married the Hungarian boy, Anton Szabo, and sued the servant for the return of her estate. All of her underclothes and handkerchiefs were embroidered with a three-pronged crown. Is this story enough to find out her father's name?