Simplify the following text for a Grade 4 native English-speaking person.
Original: Henry VI ( 6 December 1421 -- 21 May 1471 ) was King of England from 1422 to 1461 and again from 1470 to 1471 , and disputed King of France from 1422 to 1453 .
Simplified: Henry VI ( 6 December 1421-21 May 1471 ) was King of England from 1422 to 1461 and then from 1470 to 1471 . He was also the King of France from 1422 to 1453 .