High Quality Content by WIKIPEDIA articles! Richard III (2 October 1452 – 22 August 1485) was King of England for two years, from 1483 until his death in 1485 during the Battle of Bosworth Field. He was the last king of the House of York and the last of the Plantagenet dynasty. His defeat at the Battle of Bosworth Field was the decisive battle of the Wars of the Roses and is sometimes regarded as the end of the Middle Ages in England. He is the subject of an eponymous play by William Shakespeare.