"Buddenbrooks: Verfall einer Familie" by Thomas Mann is a novel published in 1901. It chronicles the gradual decline of a wealthy north German merchant family across four generations, from 1835 to 1877. Drawing from Mann's own family history in Lübeck, the story explores conflicts between business duty and personal happiness as the Buddenbrooks face financial reverses and changing values during Germany's industrialization. Mann's first novel, written when he was twenty-six, became a literary success and earned him the Nobel Prize in Literature in 1929.