Why is Lord Byron considered one of the major English Romantic poets?

Lord Byron is considered a major figure of the second generation of English Romantic writers, alongside Percy Bysshe Shelley and John Keats. His significance stems from several key contributions:12

• Literary Archetype: Through his autobiographical poem Childe Harold’s Pilgrimage, he created the "Byronic hero"—a brooding, rebellious, and melancholy figure that became a lasting archetype in literature and popular culture.12
• Satiric Mastery: While initially famous for his gloomy Romantic verse, he is highly esteemed for the satiric realism of his masterpiece, Don Juan. Using the ottava rima form, he combined biting irony with digressive commentary to deflate sentimental pretensions.32
• Cultural Impact: Byron was one of the first great literary celebrities, whose poetry and complex personality captured the imagination of Europe. His work reflected the Romantic shift toward exotic, Mediterranean themes and a deep, often cynical, engagement with the imperfections of reality.1432
• Patriotism: Beyond his writing, he became a symbol of disinterested patriotism for his active support of the Greek struggle for independence, ultimately dying in the service of that cause.5