Premise: 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 . Richard was struck down in the conflict , making him the last English king to die in battle on home soil and the first since Harold Godwinson ( who was killed at the Battle of Hastings in 1066 ) .
Hypothesis: Richard III of England was killed in battle.
Label: ENTAILMENT