Charlotte Brontë (/ˈʃɑːrlət ˈbrɒnti/, commonly /-teɪ/; 21 April 1816 – 31 March 1855) was an English novelist and poet, the eldest of the three Brontë sisters who survived into adulthood and whose novels became classics of English literature. Charlotte Brontë was the last to die of all her siblings. She became pregnant shortly after her marriage in June 1854 but died on 31 March 1855, almost certainly from hyperemesis gravidarum, a complication of pregnancy which causes excessive nausea and vomiting.