Geoffrey Chaucer (1343-1400) was an English poet of the late Middle Ages, best known for his unfinished work The Canterbury Tales. Writing mainly in vernacular English, as opposed to French or Latin, he is considered the father of English literature. Born in London, he became a servant in the court of Countess Elizabeth of Ulster and was a courtier, diplomat and bureaucrat throughout his lifetime, during which he received acclaim for his writings. Chaucer was the first person to be buried in Westminster Abbey's Poet's Corner when he died in 1400.