Simplify the following text for a Grade 5 native English-speaking person.
Original: Henry II of France ( March 31 , 1519 â `` July 10 , 1559 ) was a King of France and a member of the house of Valois .
Simplified: Henry II ( 31 March 1519 -- 10 July 1559 ) was King of France from 31 March 1547 , until his death in 1559 .