Elizabeth Barrett Browning (née Moulton-Barrett; /ˈbraʊnɪŋ/; 6 March 1806 – 29 June 1861) was an English poet of the Victorian era, popular in Britain and the United States during her lifetime. Born in County Durham, the eldest of 11 children, Elizabeth Barrett wrote poetry from the age of eleven. Her mother's collection of her poems forms one of the largest extant collections of juvenilia by any English writer. At 15 she became ill, suffering intense head and spinal pain for the rest of her life. Later in life she also developed lung problems, possibly tuberculosis. She took laudanum for the pain from an early age, which is likely to have contributed to her frail health.