Simplify the following text for a Grade 4 native English-speaking person.
Original: 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 .
Simplified: Richard III ( 1452 â `` 1485 ) was an English king . He reigned from 1483 until 1485 .