"Thomas Buddenbrook" is a novel written by Thomas Mann, first published in 1901. It tells the story of the Buddenbrook family, a wealthy merchant family in Lübeck, Germany, and their decline over several generations. The narrative explores themes of social change, family dynamics, and the impact of economic forces on personal lives. The protagonist, Thomas Buddenbrook, is a young businessman who struggles to maintain his family's legacy while facing the challenges of modernity. The novel is notable for its rich character development and detailed depiction of 19th-century German society, making it a significant work in German literature.