Alfred Lord Tennyson was a prominent English poet born on August 6, 1809, who gained recognition for works such as 'In Memoriam A.H.H.' and 'The Lady of Shalott'. He served as Poet Laureate for 42 years, introducing rich imagery and metrical variety to Victorian literature, and received numerous accolades during his lifetime. Tennyson passed away on October 6, 1892, leaving a lasting legacy celebrated in Westminster Abbey.