Premise: The Battle of Bosworth Field ( or Battle of Bosworth ) was the last significant battle of the Wars of the Roses , the civil war between the Houses of Lancaster and York that raged across England in the latter half of the 15th century . Richard III ( 2 October 1452 -- 22 August 1485 ) was King of England from 1483 until his death in 1485 , at the age of 32 , in the Battle of Bosworth Field . His defeat at Bosworth Field , the last decisive battle of the Wars of the Roses , marked the end of the Middle Ages in England .
Hypothesis: Richard III of England died during the Wars of the Roses.
Label: ENTAILMENT