It was Geoffrey Chaucer who was the poet of the fourteenth century and who helped in the development of Middle English. Chaucer is also known as the "Father of English Literature". He is considered as the great poet of the fourteenth century or "Age of Chaucer". Chaucer had contributed around two-thousand words in English dictionary. He wrote in English during the time when French and Latin was in much use in literature. His magnum opus "The Canterbury Tales" can be considered that bank.
So, it was not Shakespeare who wrote in the fourteenth century but Chaucer. Shakespeare wrote during the Elizabethan Era starting from 1558-1603.
