"Thaddeus of Warsaw" by Jane Porter is a novel published in 1803. It follows Thaddeus Sobieski, a gallant Polish soldier who fights in the Kościuszko Uprising against Russian forces. After Poland's defeat, he flees to London seeking his unknown English father. There he sells art, navigates aristocratic society, falls in love, and searches for his lost parent. The novel blends historical military narrative with social commentary, criticizing English aristocracy while championing constitutional government against absolutism. This popular work remained in print throughout the nineteenth century. (This is an automatically generated summary.)