How did Heinrich Heine’s poetry differ from earlier Romantic poetry?

Heinrich Heine is recognized as a major representative of the post-Romantic crisis in Germany. While he was deeply familiar with the traditions of earlier Romantic poetry, he lacked the "Romantic faith"—the belief that poetry could poetically transform life and the world to resolve the anxieties and alienation of the era.1

Heine’s work differed from his predecessors through a consistent, taut tension between artistic sensibility and reality. His love poems, while utilizing traditional Romantic materials, were simultaneously suspicious of them and the emotions they represented. Key differences include:

• Desentimentalization: His poetry moved toward a more skeptical, self-ironic tone, often undermining the very sentiments it expressed.1
• Ambiguity: His music shifted between liquid and discordant tones, reflecting a skepticism about "poetic truth".1
• Contemporary Relevance: Over time, Heine shifted his focus from pure "poesy" to political and social commentary, incorporating harsh satire and critical engagement with contemporary conditions, which contrasted with the earlier Romantic tendency to idealize the medieval past.23

Ultimately, Heine served as a transitional figure who emerged from late Romanticism but utilized his work to critique the movement's limitations in the face of modern stresses.13