Simplify the following text for a Grade 4 native English-speaking person.
Original: She went into confinement in September 1537 and gave birth to the coveted male heir , the future King Edward VI on 12 October 1537 at Hampton Court Palace .
Simplified: In October of 1537 , she gave birth to the son that Henry VIII wanted so much . They named him Edward and he was later to be King Edward VI of England .